Home / 813,341.52-1,220,165.80-308,053.80

Finding the Fourth Proportional to 813,341.52, 1,220,165.80 and 308,053.80

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Solution

The fourth proportional to 813,341.52, 1,220,165.80 and 308,053.80 is: 462,138.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,341.52 : 1,220,165.80 = 308,053.80 : x
  2. Step 2: Convert to fraction form
    813,341.52/1,220,165.80 = 308,053.80/x
  3. Step 3: Cross multiply
    813,341.52x = 1,220,165.80 × 308,053.80
  4. Step 4: Simplify right side
    813,341.52x = 375,876,711,320.04
  5. Step 5: Solve for x
    x = 375,876,711,320.04/813,341.52
  6. Step 6: Final answer
    x = 462,138.85

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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.