Home / 727,812.70-1,092,107.85-328,515.10

Finding the Fourth Proportional to 727,812.70, 1,092,107.85 and 328,515.10

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Solution

The fourth proportional to 727,812.70, 1,092,107.85 and 328,515.10 is: 492,948.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,812.70 : 1,092,107.85 = 328,515.10 : x
  2. Step 2: Convert to fraction form
    727,812.70/1,092,107.85 = 328,515.10/x
  3. Step 3: Cross multiply
    727,812.70x = 1,092,107.85 × 328,515.10
  4. Step 4: Simplify right side
    727,812.70x = 358,773,919,553.54
  5. Step 5: Solve for x
    x = 358,773,919,553.54/727,812.70
  6. Step 6: Final answer
    x = 492,948.14

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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.