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Finding the Fourth Proportional to 873,518.92, 1,205,358.42 and 491,677

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Solution

The fourth proportional to 873,518.92, 1,205,358.42 and 491,677 is: 678,459.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,518.92 : 1,205,358.42 = 491,677 : x
  2. Step 2: Convert to fraction form
    873,518.92/1,205,358.42 = 491,677/x
  3. Step 3: Cross multiply
    873,518.92x = 1,205,358.42 × 491,677
  4. Step 4: Simplify right side
    873,518.92x = 592,647,011,870.34
  5. Step 5: Solve for x
    x = 592,647,011,870.34/873,518.92
  6. Step 6: Final answer
    x = 678,459.27

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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.