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Finding the Fourth Proportional to 615,176.20, 922,764.30 and 565,409.80

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Solution

The fourth proportional to 615,176.20, 922,764.30 and 565,409.80 is: 848,114.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,176.20 : 922,764.30 = 565,409.80 : x
  2. Step 2: Convert to fraction form
    615,176.20/922,764.30 = 565,409.80/x
  3. Step 3: Cross multiply
    615,176.20x = 922,764.30 × 565,409.80
  4. Step 4: Simplify right side
    615,176.20x = 521,739,978,310.14
  5. Step 5: Solve for x
    x = 521,739,978,310.14/615,176.20
  6. Step 6: Final answer
    x = 848,114.70

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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.