Home / 873,127.56-1,309,691.72-392,794.32

Finding the Fourth Proportional to 873,127.56, 1,309,691.72 and 392,794.32

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Solution

The fourth proportional to 873,127.56, 1,309,691.72 and 392,794.32 is: 589,191.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,127.56 : 1,309,691.72 = 392,794.32 : x
  2. Step 2: Convert to fraction form
    873,127.56/1,309,691.72 = 392,794.32/x
  3. Step 3: Cross multiply
    873,127.56x = 1,309,691.72 × 392,794.32
  4. Step 4: Simplify right side
    873,127.56x = 514,439,468,567.03
  5. Step 5: Solve for x
    x = 514,439,468,567.03/873,127.56
  6. Step 6: Final answer
    x = 589,191.65

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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.