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Finding the Fourth Proportional to 484,635.40, 727,098.90 and 260,103.40

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Solution

The fourth proportional to 484,635.40, 727,098.90 and 260,103.40 is: 390,233.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,635.40 : 727,098.90 = 260,103.40 : x
  2. Step 2: Convert to fraction form
    484,635.40/727,098.90 = 260,103.40/x
  3. Step 3: Cross multiply
    484,635.40x = 727,098.90 × 260,103.40
  4. Step 4: Simplify right side
    484,635.40x = 189,120,896,026.26
  5. Step 5: Solve for x
    x = 189,120,896,026.26/484,635.40
  6. Step 6: Final answer
    x = 390,233.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.