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Finding the Fourth Proportional to 620,514.03, 929,909.89 and 282,729.13

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Solution

The fourth proportional to 620,514.03, 929,909.89 and 282,729.13 is: 423,701.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,514.03 : 929,909.89 = 282,729.13 : x
  2. Step 2: Convert to fraction form
    620,514.03/929,909.89 = 282,729.13/x
  3. Step 3: Cross multiply
    620,514.03x = 929,909.89 × 282,729.13
  4. Step 4: Simplify right side
    620,514.03x = 262,912,614,178.10
  5. Step 5: Solve for x
    x = 262,912,614,178.10/620,514.03
  6. Step 6: Final answer
    x = 423,701.32

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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.