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Finding the Fourth Proportional to 656,646.30, 984,969.45 and 376,710.30

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Solution

The fourth proportional to 656,646.30, 984,969.45 and 376,710.30 is: 565,065.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,646.30 : 984,969.45 = 376,710.30 : x
  2. Step 2: Convert to fraction form
    656,646.30/984,969.45 = 376,710.30/x
  3. Step 3: Cross multiply
    656,646.30x = 984,969.45 × 376,710.30
  4. Step 4: Simplify right side
    656,646.30x = 371,048,137,000.34
  5. Step 5: Solve for x
    x = 371,048,137,000.34/656,646.30
  6. Step 6: Final answer
    x = 565,065.45

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.