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Finding the Fourth Proportional to 658,535.87, 908,777.48 and 372,055.88

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Solution

The fourth proportional to 658,535.87, 908,777.48 and 372,055.88 is: 513,435.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,535.87 : 908,777.48 = 372,055.88 : x
  2. Step 2: Convert to fraction form
    658,535.87/908,777.48 = 372,055.88/x
  3. Step 3: Cross multiply
    658,535.87x = 908,777.48 × 372,055.88
  4. Step 4: Simplify right side
    658,535.87x = 338,116,005,457.25
  5. Step 5: Solve for x
    x = 338,116,005,457.25/658,535.87
  6. Step 6: Final answer
    x = 513,435.97

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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.