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Finding the Fourth Proportional to 659,232, 988,798.32 and 209,934.72

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Solution

The fourth proportional to 659,232, 988,798.32 and 209,934.72 is: 314,886.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,232 : 988,798.32 = 209,934.72 : x
  2. Step 2: Convert to fraction form
    659,232/988,798.32 = 209,934.72/x
  3. Step 3: Cross multiply
    659,232x = 988,798.32 × 209,934.72
  4. Step 4: Simplify right side
    659,232x = 207,583,098,445.67
  5. Step 5: Solve for x
    x = 207,583,098,445.67/659,232
  6. Step 6: Final answer
    x = 314,886.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.