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Finding the Fourth Proportional to 587,025.20, 880,537.80 and 212,999.60

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Solution

The fourth proportional to 587,025.20, 880,537.80 and 212,999.60 is: 319,499.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,025.20 : 880,537.80 = 212,999.60 : x
  2. Step 2: Convert to fraction form
    587,025.20/880,537.80 = 212,999.60/x
  3. Step 3: Cross multiply
    587,025.20x = 880,537.80 × 212,999.60
  4. Step 4: Simplify right side
    587,025.20x = 187,554,199,184.88
  5. Step 5: Solve for x
    x = 187,554,199,184.88/587,025.20
  6. Step 6: Final answer
    x = 319,499.40

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Double scale
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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.