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Finding the Fourth Proportional to 587,214.30, 880,821.45 and 213,188.70

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Solution

The fourth proportional to 587,214.30, 880,821.45 and 213,188.70 is: 319,783.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,214.30 : 880,821.45 = 213,188.70 : x
  2. Step 2: Convert to fraction form
    587,214.30/880,821.45 = 213,188.70/x
  3. Step 3: Cross multiply
    587,214.30x = 880,821.45 × 213,188.70
  4. Step 4: Simplify right side
    587,214.30x = 187,781,179,857.62
  5. Step 5: Solve for x
    x = 187,781,179,857.62/587,214.30
  6. Step 6: Final answer
    x = 319,783.05

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Similar ratio
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1.5x scale

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.