Home / 787,930.40-1,182,770.40-488,748.80

Finding the Fourth Proportional to 787,930.40, 1,182,770.40 and 488,748.80

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Solution

The fourth proportional to 787,930.40, 1,182,770.40 and 488,748.80 is: 733,665.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,930.40 : 1,182,770.40 = 488,748.80 : x
  2. Step 2: Convert to fraction form
    787,930.40/1,182,770.40 = 488,748.80/x
  3. Step 3: Cross multiply
    787,930.40x = 1,182,770.40 × 488,748.80
  4. Step 4: Simplify right side
    787,930.40x = 578,077,613,675.52
  5. Step 5: Solve for x
    x = 578,077,613,675.52/787,930.40
  6. Step 6: Final answer
    x = 733,665.83

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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.