Home / 1,377,625.60-2,066,438.40-431,004.52

Finding the Fourth Proportional to 1,377,625.60, 2,066,438.40 and 431,004.52

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Solution

The fourth proportional to 1,377,625.60, 2,066,438.40 and 431,004.52 is: 646,506.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,625.60 : 2,066,438.40 = 431,004.52 : x
  2. Step 2: Convert to fraction form
    1,377,625.60/2,066,438.40 = 431,004.52/x
  3. Step 3: Cross multiply
    1,377,625.60x = 2,066,438.40 × 431,004.52
  4. Step 4: Simplify right side
    1,377,625.60x = 890,644,290,701.57
  5. Step 5: Solve for x
    x = 890,644,290,701.57/1,377,625.60
  6. Step 6: Final answer
    x = 646,506.78

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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.