Home / 725,788.36-1,001,651.75-399,158.92

Finding the Fourth Proportional to 725,788.36, 1,001,651.75 and 399,158.92

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Solution

The fourth proportional to 725,788.36, 1,001,651.75 and 399,158.92 is: 550,874.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,788.36 : 1,001,651.75 = 399,158.92 : x
  2. Step 2: Convert to fraction form
    725,788.36/1,001,651.75 = 399,158.92/x
  3. Step 3: Cross multiply
    725,788.36x = 1,001,651.75 × 399,158.92
  4. Step 4: Simplify right side
    725,788.36x = 399,818,228,750.32
  5. Step 5: Solve for x
    x = 399,818,228,750.32/725,788.36
  6. Step 6: Final answer
    x = 550,874.40

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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.