Home / 538,103.20-805,599.60-328,151.20

Finding the Fourth Proportional to 538,103.20, 805,599.60 and 328,151.20

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Solution

The fourth proportional to 538,103.20, 805,599.60 and 328,151.20 is: 491,278.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,103.20 : 805,599.60 = 328,151.20 : x
  2. Step 2: Convert to fraction form
    538,103.20/805,599.60 = 328,151.20/x
  3. Step 3: Cross multiply
    538,103.20x = 805,599.60 × 328,151.20
  4. Step 4: Simplify right side
    538,103.20x = 264,358,475,459.52
  5. Step 5: Solve for x
    x = 264,358,475,459.52/538,103.20
  6. Step 6: Final answer
    x = 491,278.39

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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.