Home / 1,105,129.55-1,657,694.42-306,411.12

Finding the Fourth Proportional to 1,105,129.55, 1,657,694.42 and 306,411.12

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Solution

The fourth proportional to 1,105,129.55, 1,657,694.42 and 306,411.12 is: 459,616.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,129.55 : 1,657,694.42 = 306,411.12 : x
  2. Step 2: Convert to fraction form
    1,105,129.55/1,657,694.42 = 306,411.12/x
  3. Step 3: Cross multiply
    1,105,129.55x = 1,657,694.42 × 306,411.12
  4. Step 4: Simplify right side
    1,105,129.55x = 507,936,002,317.90
  5. Step 5: Solve for x
    x = 507,936,002,317.90/1,105,129.55
  6. Step 6: Final answer
    x = 459,616.71

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Double scale
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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.