Home / 386,077.20-579,029.40-253,885.20

Finding the Fourth Proportional to 386,077.20, 579,029.40 and 253,885.20

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Solution

The fourth proportional to 386,077.20, 579,029.40 and 253,885.20 is: 380,770.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,077.20 : 579,029.40 = 253,885.20 : x
  2. Step 2: Convert to fraction form
    386,077.20/579,029.40 = 253,885.20/x
  3. Step 3: Cross multiply
    386,077.20x = 579,029.40 × 253,885.20
  4. Step 4: Simplify right side
    386,077.20x = 147,006,995,024.88
  5. Step 5: Solve for x
    x = 147,006,995,024.88/386,077.20
  6. Step 6: Final answer
    x = 380,770.98

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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.