Home / 657,789.68-986,985.84-357,820.76

Finding the Fourth Proportional to 657,789.68, 986,985.84 and 357,820.76

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Solution

The fourth proportional to 657,789.68, 986,985.84 and 357,820.76 is: 536,895.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,789.68 : 986,985.84 = 357,820.76 : x
  2. Step 2: Convert to fraction form
    657,789.68/986,985.84 = 357,820.76/x
  3. Step 3: Cross multiply
    657,789.68x = 986,985.84 × 357,820.76
  4. Step 4: Simplify right side
    657,789.68x = 353,164,023,378.04
  5. Step 5: Solve for x
    x = 353,164,023,378.04/657,789.68
  6. Step 6: Final answer
    x = 536,895.05

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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.