Home / 857,799-1,286,698.50-587,660.76

Finding the Fourth Proportional to 857,799, 1,286,698.50 and 587,660.76

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Solution

The fourth proportional to 857,799, 1,286,698.50 and 587,660.76 is: 881,491.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,799 : 1,286,698.50 = 587,660.76 : x
  2. Step 2: Convert to fraction form
    857,799/1,286,698.50 = 587,660.76/x
  3. Step 3: Cross multiply
    857,799x = 1,286,698.50 × 587,660.76
  4. Step 4: Simplify right side
    857,799x = 756,142,218,400.86
  5. Step 5: Solve for x
    x = 756,142,218,400.86/857,799
  6. Step 6: Final answer
    x = 881,491.14

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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.