Home / 391,738.04-587,607.25-258,587.18

Finding the Fourth Proportional to 391,738.04, 587,607.25 and 258,587.18

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Solution

The fourth proportional to 391,738.04, 587,607.25 and 258,587.18 is: 387,880.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,738.04 : 587,607.25 = 258,587.18 : x
  2. Step 2: Convert to fraction form
    391,738.04/587,607.25 = 258,587.18/x
  3. Step 3: Cross multiply
    391,738.04x = 587,607.25 × 258,587.18
  4. Step 4: Simplify right side
    391,738.04x = 151,947,701,725.06
  5. Step 5: Solve for x
    x = 151,947,701,725.06/391,738.04
  6. Step 6: Final answer
    x = 387,880.90

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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.