Home / 584,780.40-876,733.20-318,841.20

Finding the Fourth Proportional to 584,780.40, 876,733.20 and 318,841.20

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Solution

The fourth proportional to 584,780.40, 876,733.20 and 318,841.20 is: 478,023.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,780.40 : 876,733.20 = 318,841.20 : x
  2. Step 2: Convert to fraction form
    584,780.40/876,733.20 = 318,841.20/x
  3. Step 3: Cross multiply
    584,780.40x = 876,733.20 × 318,841.20
  4. Step 4: Simplify right side
    584,780.40x = 279,538,665,567.84
  5. Step 5: Solve for x
    x = 279,538,665,567.84/584,780.40
  6. Step 6: Final answer
    x = 478,023.32

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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.