Home / 379,610.94-523,943.19-315,886.62

Finding the Fourth Proportional to 379,610.94, 523,943.19 and 315,886.62

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Solution

The fourth proportional to 379,610.94, 523,943.19 and 315,886.62 is: 435,990.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,610.94 : 523,943.19 = 315,886.62 : x
  2. Step 2: Convert to fraction form
    379,610.94/523,943.19 = 315,886.62/x
  3. Step 3: Cross multiply
    379,610.94x = 523,943.19 × 315,886.62
  4. Step 4: Simplify right side
    379,610.94x = 165,506,643,361.12
  5. Step 5: Solve for x
    x = 165,506,643,361.12/379,610.94
  6. Step 6: Final answer
    x = 435,990.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.