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Finding the Fourth Proportional to 434,571.20, 651,856.80 and 410,076.80

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Solution

The fourth proportional to 434,571.20, 651,856.80 and 410,076.80 is: 615,115.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,571.20 : 651,856.80 = 410,076.80 : x
  2. Step 2: Convert to fraction form
    434,571.20/651,856.80 = 410,076.80/x
  3. Step 3: Cross multiply
    434,571.20x = 651,856.80 × 410,076.80
  4. Step 4: Simplify right side
    434,571.20x = 267,311,350,602.24
  5. Step 5: Solve for x
    x = 267,311,350,602.24/434,571.20
  6. Step 6: Final answer
    x = 615,115.20

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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.