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Finding the Fourth Proportional to 610,746.38, 915,523.86 and 290,812.28

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Solution

The fourth proportional to 610,746.38, 915,523.86 and 290,812.28 is: 435,934.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,746.38 : 915,523.86 = 290,812.28 : x
  2. Step 2: Convert to fraction form
    610,746.38/915,523.86 = 290,812.28/x
  3. Step 3: Cross multiply
    610,746.38x = 915,523.86 × 290,812.28
  4. Step 4: Simplify right side
    610,746.38x = 266,245,581,121.00
  5. Step 5: Solve for x
    x = 266,245,581,121.00/610,746.38
  6. Step 6: Final answer
    x = 435,934.77

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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.