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Finding the Fourth Proportional to 721,610.08, 996,022.08 and 419,862.40

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Solution

The fourth proportional to 721,610.08, 996,022.08 and 419,862.40 is: 579,526.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,610.08 : 996,022.08 = 419,862.40 : x
  2. Step 2: Convert to fraction form
    721,610.08/996,022.08 = 419,862.40/x
  3. Step 3: Cross multiply
    721,610.08x = 996,022.08 × 419,862.40
  4. Step 4: Simplify right side
    721,610.08x = 418,192,220,961.79
  5. Step 5: Solve for x
    x = 418,192,220,961.79/721,610.08
  6. Step 6: Final answer
    x = 579,526.58

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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.