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Finding the Fourth Proportional to 426,463, 588,570.78 and 247,615

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Solution

The fourth proportional to 426,463, 588,570.78 and 247,615 is: 341,738.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,463 : 588,570.78 = 247,615 : x
  2. Step 2: Convert to fraction form
    426,463/588,570.78 = 247,615/x
  3. Step 3: Cross multiply
    426,463x = 588,570.78 × 247,615
  4. Step 4: Simplify right side
    426,463x = 145,738,953,689.70
  5. Step 5: Solve for x
    x = 145,738,953,689.70/426,463
  6. Step 6: Final answer
    x = 341,738.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.