Home / 745,375.68-1,028,630.92-423,095.72

Finding the Fourth Proportional to 745,375.68, 1,028,630.92 and 423,095.72

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Solution

The fourth proportional to 745,375.68, 1,028,630.92 and 423,095.72 is: 583,879.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,375.68 : 1,028,630.92 = 423,095.72 : x
  2. Step 2: Convert to fraction form
    745,375.68/1,028,630.92 = 423,095.72/x
  3. Step 3: Cross multiply
    745,375.68x = 1,028,630.92 × 423,095.72
  4. Step 4: Simplify right side
    745,375.68x = 435,209,339,711.66
  5. Step 5: Solve for x
    x = 435,209,339,711.66/745,375.68
  6. Step 6: Final answer
    x = 583,879.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.