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Finding the Fourth Proportional to 723,059.16, 997,303.47 and 477,759.78

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Solution

The fourth proportional to 723,059.16, 997,303.47 and 477,759.78 is: 658,966.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,059.16 : 997,303.47 = 477,759.78 : x
  2. Step 2: Convert to fraction form
    723,059.16/997,303.47 = 477,759.78/x
  3. Step 3: Cross multiply
    723,059.16x = 997,303.47 × 477,759.78
  4. Step 4: Simplify right side
    723,059.16x = 476,471,486,420.44
  5. Step 5: Solve for x
    x = 476,471,486,420.44/723,059.16
  6. Step 6: Final answer
    x = 658,966.12

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.