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Finding the Fourth Proportional to 605,217.70, 907,826.55 and 268,419.70

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Solution

The fourth proportional to 605,217.70, 907,826.55 and 268,419.70 is: 402,629.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,217.70 : 907,826.55 = 268,419.70 : x
  2. Step 2: Convert to fraction form
    605,217.70/907,826.55 = 268,419.70/x
  3. Step 3: Cross multiply
    605,217.70x = 907,826.55 × 268,419.70
  4. Step 4: Simplify right side
    605,217.70x = 243,678,530,203.04
  5. Step 5: Solve for x
    x = 243,678,530,203.04/605,217.70
  6. Step 6: Final answer
    x = 402,629.55

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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.