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Finding the Fourth Proportional to 424,741, 586,156.38 and 243,487.28

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Solution

The fourth proportional to 424,741, 586,156.38 and 243,487.28 is: 336,020.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,741 : 586,156.38 = 243,487.28 : x
  2. Step 2: Convert to fraction form
    424,741/586,156.38 = 243,487.28/x
  3. Step 3: Cross multiply
    424,741x = 586,156.38 × 243,487.28
  4. Step 4: Simplify right side
    424,741x = 142,721,622,620.85
  5. Step 5: Solve for x
    x = 142,721,622,620.85/424,741
  6. Step 6: Final answer
    x = 336,020.36

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Double scale
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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.