Home / 747,830.60-1,121,745.90-274,358.60

Finding the Fourth Proportional to 747,830.60, 1,121,745.90 and 274,358.60

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Solution

The fourth proportional to 747,830.60, 1,121,745.90 and 274,358.60 is: 411,537.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,830.60 : 1,121,745.90 = 274,358.60 : x
  2. Step 2: Convert to fraction form
    747,830.60/1,121,745.90 = 274,358.60/x
  3. Step 3: Cross multiply
    747,830.60x = 1,121,745.90 × 274,358.60
  4. Step 4: Simplify right side
    747,830.60x = 307,760,634,679.74
  5. Step 5: Solve for x
    x = 307,760,634,679.74/747,830.60
  6. Step 6: Final answer
    x = 411,537.90

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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.