Home / 587,128.06-810,240.88-318,856.06

Finding the Fourth Proportional to 587,128.06, 810,240.88 and 318,856.06

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Solution

The fourth proportional to 587,128.06, 810,240.88 and 318,856.06 is: 440,023.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,128.06 : 810,240.88 = 318,856.06 : x
  2. Step 2: Convert to fraction form
    587,128.06/810,240.88 = 318,856.06/x
  3. Step 3: Cross multiply
    587,128.06x = 810,240.88 × 318,856.06
  4. Step 4: Simplify right side
    587,128.06x = 258,350,214,647.73
  5. Step 5: Solve for x
    x = 258,350,214,647.73/587,128.06
  6. Step 6: Final answer
    x = 440,023.62

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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.