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Finding the Fourth Proportional to 1,649,583.60, 2,472,013.80 and 938,108.40

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Solution

The fourth proportional to 1,649,583.60, 2,472,013.80 and 938,108.40 is: 1,405,819.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,649,583.60 : 2,472,013.80 = 938,108.40 : x
  2. Step 2: Convert to fraction form
    1,649,583.60/2,472,013.80 = 938,108.40/x
  3. Step 3: Cross multiply
    1,649,583.60x = 2,472,013.80 × 938,108.40
  4. Step 4: Simplify right side
    1,649,583.60x = 2,319,016,910,695.92
  5. Step 5: Solve for x
    x = 2,319,016,910,695.92/1,649,583.60
  6. Step 6: Final answer
    x = 1,405,819.57

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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.