Home / 386,877.34-580,480.02-187,346.40

Finding the Fourth Proportional to 386,877.34, 580,480.02 and 187,346.40

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Solution

The fourth proportional to 386,877.34, 580,480.02 and 187,346.40 is: 281,099.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,877.34 : 580,480.02 = 187,346.40 : x
  2. Step 2: Convert to fraction form
    386,877.34/580,480.02 = 187,346.40/x
  3. Step 3: Cross multiply
    386,877.34x = 580,480.02 × 187,346.40
  4. Step 4: Simplify right side
    386,877.34x = 108,750,842,018.93
  5. Step 5: Solve for x
    x = 108,750,842,018.93/386,877.34
  6. Step 6: Final answer
    x = 281,099.02

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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.