Home / 1,120,359.20-1,680,538.80-372,405.20

Finding the Fourth Proportional to 1,120,359.20, 1,680,538.80 and 372,405.20

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Solution

The fourth proportional to 1,120,359.20, 1,680,538.80 and 372,405.20 is: 558,607.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,359.20 : 1,680,538.80 = 372,405.20 : x
  2. Step 2: Convert to fraction form
    1,120,359.20/1,680,538.80 = 372,405.20/x
  3. Step 3: Cross multiply
    1,120,359.20x = 1,680,538.80 × 372,405.20
  4. Step 4: Simplify right side
    1,120,359.20x = 625,841,387,921.76
  5. Step 5: Solve for x
    x = 625,841,387,921.76/1,120,359.20
  6. Step 6: Final answer
    x = 558,607.80

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1.5x scale

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.