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Finding the Fourth Proportional to 559,455.30, 772,057.17 and 304,806.42

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Solution

The fourth proportional to 559,455.30, 772,057.17 and 304,806.42 is: 420,637.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,455.30 : 772,057.17 = 304,806.42 : x
  2. Step 2: Convert to fraction form
    559,455.30/772,057.17 = 304,806.42/x
  3. Step 3: Cross multiply
    559,455.30x = 772,057.17 × 304,806.42
  4. Step 4: Simplify right side
    559,455.30x = 235,327,982,023.03
  5. Step 5: Solve for x
    x = 235,327,982,023.03/559,455.30
  6. Step 6: Final answer
    x = 420,637.68

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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.