Home / 725,894.57-1,001,708.29-399,204.76

Finding the Fourth Proportional to 725,894.57, 1,001,708.29 and 399,204.76

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Solution

The fourth proportional to 725,894.57, 1,001,708.29 and 399,204.76 is: 550,888.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,894.57 : 1,001,708.29 = 399,204.76 : x
  2. Step 2: Convert to fraction form
    725,894.57/1,001,708.29 = 399,204.76/x
  3. Step 3: Cross multiply
    725,894.57x = 1,001,708.29 × 399,204.76
  4. Step 4: Simplify right side
    725,894.57x = 399,886,717,499.46
  5. Step 5: Solve for x
    x = 399,886,717,499.46/725,894.57
  6. Step 6: Final answer
    x = 550,888.15

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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.