Home / 1,316,481.60-1,974,722.40-917,572.80

Finding the Fourth Proportional to 1,316,481.60, 1,974,722.40 and 917,572.80

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Solution

The fourth proportional to 1,316,481.60, 1,974,722.40 and 917,572.80 is: 1,376,359.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,481.60 : 1,974,722.40 = 917,572.80 : x
  2. Step 2: Convert to fraction form
    1,316,481.60/1,974,722.40 = 917,572.80/x
  3. Step 3: Cross multiply
    1,316,481.60x = 1,974,722.40 × 917,572.80
  4. Step 4: Simplify right side
    1,316,481.60x = 1,811,951,561,790.72
  5. Step 5: Solve for x
    x = 1,811,951,561,790.72/1,316,481.60
  6. Step 6: Final answer
    x = 1,376,359.20

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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.