Home / 701,359.40-1,051,520.70-386,172.20

Finding the Fourth Proportional to 701,359.40, 1,051,520.70 and 386,172.20

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Solution

The fourth proportional to 701,359.40, 1,051,520.70 and 386,172.20 is: 578,972.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,359.40 : 1,051,520.70 = 386,172.20 : x
  2. Step 2: Convert to fraction form
    701,359.40/1,051,520.70 = 386,172.20/x
  3. Step 3: Cross multiply
    701,359.40x = 1,051,520.70 × 386,172.20
  4. Step 4: Simplify right side
    701,359.40x = 406,068,062,064.54
  5. Step 5: Solve for x
    x = 406,068,062,064.54/701,359.40
  6. Step 6: Final answer
    x = 578,972.87

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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.