Home / 979,427.20-1,469,140.80-559,523.20

Finding the Fourth Proportional to 979,427.20, 1,469,140.80 and 559,523.20

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Solution

The fourth proportional to 979,427.20, 1,469,140.80 and 559,523.20 is: 839,284.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,427.20 : 1,469,140.80 = 559,523.20 : x
  2. Step 2: Convert to fraction form
    979,427.20/1,469,140.80 = 559,523.20/x
  3. Step 3: Cross multiply
    979,427.20x = 1,469,140.80 × 559,523.20
  4. Step 4: Simplify right side
    979,427.20x = 822,018,361,666.56
  5. Step 5: Solve for x
    x = 822,018,361,666.56/979,427.20
  6. Step 6: Final answer
    x = 839,284.80

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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.