Home / 873,115.92-1,309,674.22-392,782.66

Finding the Fourth Proportional to 873,115.92, 1,309,674.22 and 392,782.66

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Solution

The fourth proportional to 873,115.92, 1,309,674.22 and 392,782.66 is: 589,174.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,115.92 : 1,309,674.22 = 392,782.66 : x
  2. Step 2: Convert to fraction form
    873,115.92/1,309,674.22 = 392,782.66/x
  3. Step 3: Cross multiply
    873,115.92x = 1,309,674.22 × 392,782.66
  4. Step 4: Simplify right side
    873,115.92x = 514,417,319,608.88
  5. Step 5: Solve for x
    x = 514,417,319,608.88/873,115.92
  6. Step 6: Final answer
    x = 589,174.14

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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.