Home / 790,424.28-1,185,691.50-317,109.24

Finding the Fourth Proportional to 790,424.28, 1,185,691.50 and 317,109.24

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Solution

The fourth proportional to 790,424.28, 1,185,691.50 and 317,109.24 is: 475,685.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,424.28 : 1,185,691.50 = 317,109.24 : x
  2. Step 2: Convert to fraction form
    790,424.28/1,185,691.50 = 317,109.24/x
  3. Step 3: Cross multiply
    790,424.28x = 1,185,691.50 × 317,109.24
  4. Step 4: Simplify right side
    790,424.28x = 375,993,730,439.46
  5. Step 5: Solve for x
    x = 375,993,730,439.46/790,424.28
  6. Step 6: Final answer
    x = 475,685.96

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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.