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Finding the Fourth Proportional to 507,002.62, 699,663.62 and 280,648.12

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Solution

The fourth proportional to 507,002.62, 699,663.62 and 280,648.12 is: 387,294.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,002.62 : 699,663.62 = 280,648.12 : x
  2. Step 2: Convert to fraction form
    507,002.62/699,663.62 = 280,648.12/x
  3. Step 3: Cross multiply
    507,002.62x = 699,663.62 × 280,648.12
  4. Step 4: Simplify right side
    507,002.62x = 196,359,279,585.39
  5. Step 5: Solve for x
    x = 196,359,279,585.39/507,002.62
  6. Step 6: Final answer
    x = 387,294.41

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1.5x scale

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.