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Finding the Fourth Proportional to 424,657.80, 586,034.28 and 243,385.56

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Solution

The fourth proportional to 424,657.80, 586,034.28 and 243,385.56 is: 335,875.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,657.80 : 586,034.28 = 243,385.56 : x
  2. Step 2: Convert to fraction form
    424,657.80/586,034.28 = 243,385.56/x
  3. Step 3: Cross multiply
    424,657.80x = 586,034.28 × 243,385.56
  4. Step 4: Simplify right side
    424,657.80x = 142,632,281,417.00
  5. Step 5: Solve for x
    x = 142,632,281,417.00/424,657.80
  6. Step 6: Final answer
    x = 335,875.81

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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.