Home / 725,265.60-1,087,639.20-251,966.40

Finding the Fourth Proportional to 725,265.60, 1,087,639.20 and 251,966.40

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Solution

The fourth proportional to 725,265.60, 1,087,639.20 and 251,966.40 is: 377,859.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,265.60 : 1,087,639.20 = 251,966.40 : x
  2. Step 2: Convert to fraction form
    725,265.60/1,087,639.20 = 251,966.40/x
  3. Step 3: Cross multiply
    725,265.60x = 1,087,639.20 × 251,966.40
  4. Step 4: Simplify right side
    725,265.60x = 274,048,533,722.88
  5. Step 5: Solve for x
    x = 274,048,533,722.88/725,265.60
  6. Step 6: Final answer
    x = 377,859.55

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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.