Home / 918,139.20-1,377,208.80-544,891.20

Finding the Fourth Proportional to 918,139.20, 1,377,208.80 and 544,891.20

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Solution

The fourth proportional to 918,139.20, 1,377,208.80 and 544,891.20 is: 817,336.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,139.20 : 1,377,208.80 = 544,891.20 : x
  2. Step 2: Convert to fraction form
    918,139.20/1,377,208.80 = 544,891.20/x
  3. Step 3: Cross multiply
    918,139.20x = 1,377,208.80 × 544,891.20
  4. Step 4: Simplify right side
    918,139.20x = 750,428,955,682.56
  5. Step 5: Solve for x
    x = 750,428,955,682.56/918,139.20
  6. Step 6: Final answer
    x = 817,336.80

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Double scale
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Similar ratio
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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.