Home / 725,593,970.80-1,088,390,956.20-397,942,879.60

Finding the Fourth Proportional to 725,593,970.80, 1,088,390,956.20 and 397,942,879.60

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Solution

The fourth proportional to 725,593,970.80, 1,088,390,956.20 and 397,942,879.60 is: 596,914,319.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,593,970.80 : 1,088,390,956.20 = 397,942,879.60 : x
  2. Step 2: Convert to fraction form
    725,593,970.80/1,088,390,956.20 = 397,942,879.60/x
  3. Step 3: Cross multiply
    725,593,970.80x = 1,088,390,956.20 × 397,942,879.60
  4. Step 4: Simplify right side
    725,593,970.80x = 433,117,431,240,825,536
  5. Step 5: Solve for x
    x = 433,117,431,240,825,536/725,593,970.80
  6. Step 6: Final answer
    x = 596,914,319.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.