Home / 807,188.78-1,209,952.31-358,121.13

Finding the Fourth Proportional to 807,188.78, 1,209,952.31 and 358,121.13

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Solution

The fourth proportional to 807,188.78, 1,209,952.31 and 358,121.13 is: 536,813.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,188.78 : 1,209,952.31 = 358,121.13 : x
  2. Step 2: Convert to fraction form
    807,188.78/1,209,952.31 = 358,121.13/x
  3. Step 3: Cross multiply
    807,188.78x = 1,209,952.31 × 358,121.13
  4. Step 4: Simplify right side
    807,188.78x = 433,309,486,712.71
  5. Step 5: Solve for x
    x = 433,309,486,712.71/807,188.78
  6. Step 6: Final answer
    x = 536,813.07

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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.