Home / 979,814.40-1,469,721.60-559,132.80

Finding the Fourth Proportional to 979,814.40, 1,469,721.60 and 559,132.80

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Solution

The fourth proportional to 979,814.40, 1,469,721.60 and 559,132.80 is: 838,699.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,814.40 : 1,469,721.60 = 559,132.80 : x
  2. Step 2: Convert to fraction form
    979,814.40/1,469,721.60 = 559,132.80/x
  3. Step 3: Cross multiply
    979,814.40x = 1,469,721.60 × 559,132.80
  4. Step 4: Simplify right side
    979,814.40x = 821,769,553,428.48
  5. Step 5: Solve for x
    x = 821,769,553,428.48/979,814.40
  6. Step 6: Final answer
    x = 838,699.20

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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.