Home / 387,741.15-581,611.92-121,522.39

Finding the Fourth Proportional to 387,741.15, 581,611.92 and 121,522.39

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Solution

The fourth proportional to 387,741.15, 581,611.92 and 121,522.39 is: 182,283.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,741.15 : 581,611.92 = 121,522.39 : x
  2. Step 2: Convert to fraction form
    387,741.15/581,611.92 = 121,522.39/x
  3. Step 3: Cross multiply
    387,741.15x = 581,611.92 × 121,522.39
  4. Step 4: Simplify right side
    387,741.15x = 70,678,870,570.89
  5. Step 5: Solve for x
    x = 70,678,870,570.89/387,741.15
  6. Step 6: Final answer
    x = 182,283.65

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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.