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Finding the Fourth Proportional to 615,183.90, 922,905.45 and 260,015.10

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Solution

The fourth proportional to 615,183.90, 922,905.45 and 260,015.10 is: 390,077.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,183.90 : 922,905.45 = 260,015.10 : x
  2. Step 2: Convert to fraction form
    615,183.90/922,905.45 = 260,015.10/x
  3. Step 3: Cross multiply
    615,183.90x = 922,905.45 × 260,015.10
  4. Step 4: Simplify right side
    615,183.90x = 239,969,352,872.30
  5. Step 5: Solve for x
    x = 239,969,352,872.30/615,183.90
  6. Step 6: Final answer
    x = 390,077.43

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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.