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Finding the Fourth Proportional to 615,049.48, 922,639.88 and 260,099.40

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Solution

The fourth proportional to 615,049.48, 922,639.88 and 260,099.40 is: 390,176.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,049.48 : 922,639.88 = 260,099.40 : x
  2. Step 2: Convert to fraction form
    615,049.48/922,639.88 = 260,099.40/x
  3. Step 3: Cross multiply
    615,049.48x = 922,639.88 × 260,099.40
  4. Step 4: Simplify right side
    615,049.48x = 239,978,079,204.07
  5. Step 5: Solve for x
    x = 239,978,079,204.07/615,049.48
  6. Step 6: Final answer
    x = 390,176.87

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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.