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Finding the Fourth Proportional to 631,292.60, 870,957.42 and 373,115.36

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Solution

The fourth proportional to 631,292.60, 870,957.42 and 373,115.36 is: 514,765.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,292.60 : 870,957.42 = 373,115.36 : x
  2. Step 2: Convert to fraction form
    631,292.60/870,957.42 = 373,115.36/x
  3. Step 3: Cross multiply
    631,292.60x = 870,957.42 × 373,115.36
  4. Step 4: Simplify right side
    631,292.60x = 324,967,591,307.97
  5. Step 5: Solve for x
    x = 324,967,591,307.97/631,292.60
  6. Step 6: Final answer
    x = 514,765.41

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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.