Home / 769,633.80-1,154,450.70-349,729.80

Finding the Fourth Proportional to 769,633.80, 1,154,450.70 and 349,729.80

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Solution

The fourth proportional to 769,633.80, 1,154,450.70 and 349,729.80 is: 524,594.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,633.80 : 1,154,450.70 = 349,729.80 : x
  2. Step 2: Convert to fraction form
    769,633.80/1,154,450.70 = 349,729.80/x
  3. Step 3: Cross multiply
    769,633.80x = 1,154,450.70 × 349,729.80
  4. Step 4: Simplify right side
    769,633.80x = 403,745,812,420.86
  5. Step 5: Solve for x
    x = 403,745,812,420.86/769,633.80
  6. Step 6: Final answer
    x = 524,594.70

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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.