Home / 584,443.20-876,664.80-318,722.70

Finding the Fourth Proportional to 584,443.20, 876,664.80 and 318,722.70

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Solution

The fourth proportional to 584,443.20, 876,664.80 and 318,722.70 is: 478,084.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,443.20 : 876,664.80 = 318,722.70 : x
  2. Step 2: Convert to fraction form
    584,443.20/876,664.80 = 318,722.70/x
  3. Step 3: Cross multiply
    584,443.20x = 876,664.80 × 318,722.70
  4. Step 4: Simplify right side
    584,443.20x = 279,412,972,050.96
  5. Step 5: Solve for x
    x = 279,412,972,050.96/584,443.20
  6. Step 6: Final answer
    x = 478,084.05

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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.