Home / 558,990.18-771,383.25-304,341.57

Finding the Fourth Proportional to 558,990.18, 771,383.25 and 304,341.57

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Solution

The fourth proportional to 558,990.18, 771,383.25 and 304,341.57 is: 419,978.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,990.18 : 771,383.25 = 304,341.57 : x
  2. Step 2: Convert to fraction form
    558,990.18/771,383.25 = 304,341.57/x
  3. Step 3: Cross multiply
    558,990.18x = 771,383.25 × 304,341.57
  4. Step 4: Simplify right side
    558,990.18x = 234,763,989,376.70
  5. Step 5: Solve for x
    x = 234,763,989,376.70/558,990.18
  6. Step 6: Final answer
    x = 419,978.74

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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.