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Finding the Fourth Proportional to 487,514.08, 731,444.32 and 217,617.76

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Solution

The fourth proportional to 487,514.08, 731,444.32 and 217,617.76 is: 326,503.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,514.08 : 731,444.32 = 217,617.76 : x
  2. Step 2: Convert to fraction form
    487,514.08/731,444.32 = 217,617.76/x
  3. Step 3: Cross multiply
    487,514.08x = 731,444.32 × 217,617.76
  4. Step 4: Simplify right side
    487,514.08x = 159,175,274,483.12
  5. Step 5: Solve for x
    x = 159,175,274,483.12/487,514.08
  6. Step 6: Final answer
    x = 326,503.95

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1.5x scale

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.