Home / 1,188,428.32-1,781,755.92-715,002.76

Finding the Fourth Proportional to 1,188,428.32, 1,781,755.92 and 715,002.76

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Solution

The fourth proportional to 1,188,428.32, 1,781,755.92 and 715,002.76 is: 1,071,970.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,428.32 : 1,781,755.92 = 715,002.76 : x
  2. Step 2: Convert to fraction form
    1,188,428.32/1,781,755.92 = 715,002.76/x
  3. Step 3: Cross multiply
    1,188,428.32x = 1,781,755.92 × 715,002.76
  4. Step 4: Simplify right side
    1,188,428.32x = 1,273,960,400,446.34
  5. Step 5: Solve for x
    x = 1,273,960,400,446.34/1,188,428.32
  6. Step 6: Final answer
    x = 1,071,970.75

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