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Finding the Fourth Proportional to 587,291.52, 810,519.12 and 329,212.32

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Solution

The fourth proportional to 587,291.52, 810,519.12 and 329,212.32 is: 454,344.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,291.52 : 810,519.12 = 329,212.32 : x
  2. Step 2: Convert to fraction form
    587,291.52/810,519.12 = 329,212.32/x
  3. Step 3: Cross multiply
    587,291.52x = 810,519.12 × 329,212.32
  4. Step 4: Simplify right side
    587,291.52x = 266,832,879,899.56
  5. Step 5: Solve for x
    x = 266,832,879,899.56/587,291.52
  6. Step 6: Final answer
    x = 454,344.85

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1.5x scale

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.