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Finding the Fourth Proportional to 631,098, 870,918.46 and 344,618.10

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Solution

The fourth proportional to 631,098, 870,918.46 and 344,618.10 is: 475,574.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,098 : 870,918.46 = 344,618.10 : x
  2. Step 2: Convert to fraction form
    631,098/870,918.46 = 344,618.10/x
  3. Step 3: Cross multiply
    631,098x = 870,918.46 × 344,618.10
  4. Step 4: Simplify right side
    631,098x = 300,134,264,078.58
  5. Step 5: Solve for x
    x = 300,134,264,078.58/631,098
  6. Step 6: Final answer
    x = 475,574.73

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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.