Home / 747,801.60-1,121,572.80-274,243.20

Finding the Fourth Proportional to 747,801.60, 1,121,572.80 and 274,243.20

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Solution

The fourth proportional to 747,801.60, 1,121,572.80 and 274,243.20 is: 411,317.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,801.60 : 1,121,572.80 = 274,243.20 : x
  2. Step 2: Convert to fraction form
    747,801.60/1,121,572.80 = 274,243.20/x
  3. Step 3: Cross multiply
    747,801.60x = 1,121,572.80 × 274,243.20
  4. Step 4: Simplify right side
    747,801.60x = 307,583,713,704.96
  5. Step 5: Solve for x
    x = 307,583,713,704.96/747,801.60
  6. Step 6: Final answer
    x = 411,317.27

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1.5x scale

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.