Home / 736,870.10-1,105,305.15-512,921.30

Finding the Fourth Proportional to 736,870.10, 1,105,305.15 and 512,921.30

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Solution

The fourth proportional to 736,870.10, 1,105,305.15 and 512,921.30 is: 769,381.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    736,870.10 : 1,105,305.15 = 512,921.30 : x
  2. Step 2: Convert to fraction form
    736,870.10/1,105,305.15 = 512,921.30/x
  3. Step 3: Cross multiply
    736,870.10x = 1,105,305.15 × 512,921.30
  4. Step 4: Simplify right side
    736,870.10x = 566,934,554,434.70
  5. Step 5: Solve for x
    x = 566,934,554,434.70/736,870.10
  6. Step 6: Final answer
    x = 769,381.95

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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.