Home / 379,084.61-523,346.94-258,403.19

Finding the Fourth Proportional to 379,084.61, 523,346.94 and 258,403.19

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Solution

The fourth proportional to 379,084.61, 523,346.94 and 258,403.19 is: 356,739.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,084.61 : 523,346.94 = 258,403.19 : x
  2. Step 2: Convert to fraction form
    379,084.61/523,346.94 = 258,403.19/x
  3. Step 3: Cross multiply
    379,084.61x = 523,346.94 × 258,403.19
  4. Step 4: Simplify right side
    379,084.61x = 135,234,516,156.00
  5. Step 5: Solve for x
    x = 135,234,516,156.00/379,084.61
  6. Step 6: Final answer
    x = 356,739.66

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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.