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Finding the Fourth Proportional to 605,246.96, 907,724.64 and 268,101.20

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Solution

The fourth proportional to 605,246.96, 907,724.64 and 268,101.20 is: 402,087.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,246.96 : 907,724.64 = 268,101.20 : x
  2. Step 2: Convert to fraction form
    605,246.96/907,724.64 = 268,101.20/x
  3. Step 3: Cross multiply
    605,246.96x = 907,724.64 × 268,101.20
  4. Step 4: Simplify right side
    605,246.96x = 243,362,065,253.57
  5. Step 5: Solve for x
    x = 243,362,065,253.57/605,246.96
  6. Step 6: Final answer
    x = 402,087.22

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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.