Home / 782,503.74-1,173,716.82-458,475.39

Finding the Fourth Proportional to 782,503.74, 1,173,716.82 and 458,475.39

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Solution

The fourth proportional to 782,503.74, 1,173,716.82 and 458,475.39 is: 687,690.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,503.74 : 1,173,716.82 = 458,475.39 : x
  2. Step 2: Convert to fraction form
    782,503.74/1,173,716.82 = 458,475.39/x
  3. Step 3: Cross multiply
    782,503.74x = 1,173,716.82 × 458,475.39
  4. Step 4: Simplify right side
    782,503.74x = 538,120,276,799.06
  5. Step 5: Solve for x
    x = 538,120,276,799.06/782,503.74
  6. Step 6: Final answer
    x = 687,690.36

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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.