Home / 865,691.60-1,298,537.40-510,875.60

Finding the Fourth Proportional to 865,691.60, 1,298,537.40 and 510,875.60

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Solution

The fourth proportional to 865,691.60, 1,298,537.40 and 510,875.60 is: 766,313.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,691.60 : 1,298,537.40 = 510,875.60 : x
  2. Step 2: Convert to fraction form
    865,691.60/1,298,537.40 = 510,875.60/x
  3. Step 3: Cross multiply
    865,691.60x = 1,298,537.40 × 510,875.60
  4. Step 4: Simplify right side
    865,691.60x = 663,391,073,347.44
  5. Step 5: Solve for x
    x = 663,391,073,347.44/865,691.60
  6. Step 6: Final answer
    x = 766,313.40

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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.