Home / 928,407.78-1,392,600.12-254,488.45

Finding the Fourth Proportional to 928,407.78, 1,392,600.12 and 254,488.45

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Solution

The fourth proportional to 928,407.78, 1,392,600.12 and 254,488.45 is: 381,729.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,407.78 : 1,392,600.12 = 254,488.45 : x
  2. Step 2: Convert to fraction form
    928,407.78/1,392,600.12 = 254,488.45/x
  3. Step 3: Cross multiply
    928,407.78x = 1,392,600.12 × 254,488.45
  4. Step 4: Simplify right side
    928,407.78x = 354,400,646,008.61
  5. Step 5: Solve for x
    x = 354,400,646,008.61/928,407.78
  6. Step 6: Final answer
    x = 381,729.51

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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.