Home / 1,377,624.60-2,066,436.90-431,003.52

Finding the Fourth Proportional to 1,377,624.60, 2,066,436.90 and 431,003.52

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Solution

The fourth proportional to 1,377,624.60, 2,066,436.90 and 431,003.52 is: 646,505.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,624.60 : 2,066,436.90 = 431,003.52 : x
  2. Step 2: Convert to fraction form
    1,377,624.60/2,066,436.90 = 431,003.52/x
  3. Step 3: Cross multiply
    1,377,624.60x = 2,066,436.90 × 431,003.52
  4. Step 4: Simplify right side
    1,377,624.60x = 890,641,577,757.89
  5. Step 5: Solve for x
    x = 890,641,577,757.89/1,377,624.60
  6. Step 6: Final answer
    x = 646,505.28

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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.