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Finding the Fourth Proportional to 437,521.80, 655,262.96 and 422,368.62

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Solution

The fourth proportional to 437,521.80, 655,262.96 and 422,368.62 is: 632,568.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,521.80 : 655,262.96 = 422,368.62 : x
  2. Step 2: Convert to fraction form
    437,521.80/655,262.96 = 422,368.62/x
  3. Step 3: Cross multiply
    437,521.80x = 655,262.96 × 422,368.62
  4. Step 4: Simplify right side
    437,521.80x = 276,762,512,152.32
  5. Step 5: Solve for x
    x = 276,762,512,152.32/437,521.80
  6. Step 6: Final answer
    x = 632,568.51

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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.