Home / 819,807.29-1,221,560.93-730,373.57

Finding the Fourth Proportional to 819,807.29, 1,221,560.93 and 730,373.57

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Solution

The fourth proportional to 819,807.29, 1,221,560.93 and 730,373.57 is: 1,088,299.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,807.29 : 1,221,560.93 = 730,373.57 : x
  2. Step 2: Convert to fraction form
    819,807.29/1,221,560.93 = 730,373.57/x
  3. Step 3: Cross multiply
    819,807.29x = 1,221,560.93 × 730,373.57
  4. Step 4: Simplify right side
    819,807.29x = 892,195,817,416.62
  5. Step 5: Solve for x
    x = 892,195,817,416.62/819,807.29
  6. Step 6: Final answer
    x = 1,088,299.44

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.