Home / 1,010,665.40-1,515,998.10-479,224.40

Finding the Fourth Proportional to 1,010,665.40, 1,515,998.10 and 479,224.40

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Solution

The fourth proportional to 1,010,665.40, 1,515,998.10 and 479,224.40 is: 718,836.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,665.40 : 1,515,998.10 = 479,224.40 : x
  2. Step 2: Convert to fraction form
    1,010,665.40/1,515,998.10 = 479,224.40/x
  3. Step 3: Cross multiply
    1,010,665.40x = 1,515,998.10 × 479,224.40
  4. Step 4: Simplify right side
    1,010,665.40x = 726,503,279,873.64
  5. Step 5: Solve for x
    x = 726,503,279,873.64/1,010,665.40
  6. Step 6: Final answer
    x = 718,836.60

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Double scale
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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.