Home / 725,811.60-1,088,458.20-252,512.40

Finding the Fourth Proportional to 725,811.60, 1,088,458.20 and 252,512.40

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Solution

The fourth proportional to 725,811.60, 1,088,458.20 and 252,512.40 is: 378,678.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,811.60 : 1,088,458.20 = 252,512.40 : x
  2. Step 2: Convert to fraction form
    725,811.60/1,088,458.20 = 252,512.40/x
  3. Step 3: Cross multiply
    725,811.60x = 1,088,458.20 × 252,512.40
  4. Step 4: Simplify right side
    725,811.60x = 274,849,192,381.68
  5. Step 5: Solve for x
    x = 274,849,192,381.68/725,811.60
  6. Step 6: Final answer
    x = 378,678.42

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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.