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Finding the Fourth Proportional to 587,391.77, 810,650.16 and 329,264.57

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Solution

The fourth proportional to 587,391.77, 810,650.16 and 329,264.57 is: 454,412.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,391.77 : 810,650.16 = 329,264.57 : x
  2. Step 2: Convert to fraction form
    587,391.77/810,650.16 = 329,264.57/x
  3. Step 3: Cross multiply
    587,391.77x = 810,650.16 × 329,264.57
  4. Step 4: Simplify right side
    587,391.77x = 266,918,376,352.83
  5. Step 5: Solve for x
    x = 266,918,376,352.83/587,391.77
  6. Step 6: Final answer
    x = 454,412.86

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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.