Home / 872,919.60-1,204,543.92-490,938.24

Finding the Fourth Proportional to 872,919.60, 1,204,543.92 and 490,938.24

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Solution

The fourth proportional to 872,919.60, 1,204,543.92 and 490,938.24 is: 677,446.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,919.60 : 1,204,543.92 = 490,938.24 : x
  2. Step 2: Convert to fraction form
    872,919.60/1,204,543.92 = 490,938.24/x
  3. Step 3: Cross multiply
    872,919.60x = 1,204,543.92 × 490,938.24
  4. Step 4: Simplify right side
    872,919.60x = 591,356,672,087.50
  5. Step 5: Solve for x
    x = 591,356,672,087.50/872,919.60
  6. Step 6: Final answer
    x = 677,446.89

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.