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Finding the Fourth Proportional to 723,790.80, 998,812 and 417,856.88

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Solution

The fourth proportional to 723,790.80, 998,812 and 417,856.88 is: 576,631.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,790.80 : 998,812 = 417,856.88 : x
  2. Step 2: Convert to fraction form
    723,790.80/998,812 = 417,856.88/x
  3. Step 3: Cross multiply
    723,790.80x = 998,812 × 417,856.88
  4. Step 4: Simplify right side
    723,790.80x = 417,360,466,026.56
  5. Step 5: Solve for x
    x = 417,360,466,026.56/723,790.80
  6. Step 6: Final answer
    x = 576,631.35

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.