Home / 921,199.08-1,380,862.51-381,748.86

Finding the Fourth Proportional to 921,199.08, 1,380,862.51 and 381,748.86

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Solution

The fourth proportional to 921,199.08, 1,380,862.51 and 381,748.86 is: 572,235.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,199.08 : 1,380,862.51 = 381,748.86 : x
  2. Step 2: Convert to fraction form
    921,199.08/1,380,862.51 = 381,748.86/x
  3. Step 3: Cross multiply
    921,199.08x = 1,380,862.51 × 381,748.86
  4. Step 4: Simplify right side
    921,199.08x = 527,142,687,491.58
  5. Step 5: Solve for x
    x = 527,142,687,491.58/921,199.08
  6. Step 6: Final answer
    x = 572,235.36

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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.