Home / 387,741.87-581,612.94-121,523.04

Finding the Fourth Proportional to 387,741.87, 581,612.94 and 121,523.04

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Solution

The fourth proportional to 387,741.87, 581,612.94 and 121,523.04 is: 182,284.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,741.87 : 581,612.94 = 121,523.04 : x
  2. Step 2: Convert to fraction form
    387,741.87/581,612.94 = 121,523.04/x
  3. Step 3: Cross multiply
    387,741.87x = 581,612.94 × 121,523.04
  4. Step 4: Simplify right side
    387,741.87x = 70,679,372,572.14
  5. Step 5: Solve for x
    x = 70,679,372,572.14/387,741.87
  6. Step 6: Final answer
    x = 182,284.60

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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.