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Finding the Fourth Proportional to 587,427.40, 880,449.90 and 306,800.20

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Solution

The fourth proportional to 587,427.40, 880,449.90 and 306,800.20 is: 459,839.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,427.40 : 880,449.90 = 306,800.20 : x
  2. Step 2: Convert to fraction form
    587,427.40/880,449.90 = 306,800.20/x
  3. Step 3: Cross multiply
    587,427.40x = 880,449.90 × 306,800.20
  4. Step 4: Simplify right side
    587,427.40x = 270,122,205,409.98
  5. Step 5: Solve for x
    x = 270,122,205,409.98/587,427.40
  6. Step 6: Final answer
    x = 459,839.30

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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.