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Finding the Fourth Proportional to 615,200.70, 922,023.45 and 298,976.70

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Solution

The fourth proportional to 615,200.70, 922,023.45 and 298,976.70 is: 448,087.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,200.70 : 922,023.45 = 298,976.70 : x
  2. Step 2: Convert to fraction form
    615,200.70/922,023.45 = 298,976.70/x
  3. Step 3: Cross multiply
    615,200.70x = 922,023.45 × 298,976.70
  4. Step 4: Simplify right side
    615,200.70x = 275,663,528,403.62
  5. Step 5: Solve for x
    x = 275,663,528,403.62/615,200.70
  6. Step 6: Final answer
    x = 448,087.15

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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.