Home / 558,013.75-836,758.13-389,724.10

Finding the Fourth Proportional to 558,013.75, 836,758.13 and 389,724.10

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Solution

The fourth proportional to 558,013.75, 836,758.13 and 389,724.10 is: 584,402.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,013.75 : 836,758.13 = 389,724.10 : x
  2. Step 2: Convert to fraction form
    558,013.75/836,758.13 = 389,724.10/x
  3. Step 3: Cross multiply
    558,013.75x = 836,758.13 × 389,724.10
  4. Step 4: Simplify right side
    558,013.75x = 326,104,809,131.93
  5. Step 5: Solve for x
    x = 326,104,809,131.93/558,013.75
  6. Step 6: Final answer
    x = 584,402.82

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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.