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Finding the Fourth Proportional to 1,424.71, 2,137.29 and 500.32

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Solution

The fourth proportional to 1,424.71, 2,137.29 and 500.32 is: 750.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424.71 : 2,137.29 = 500.32 : x
  2. Step 2: Convert to fraction form
    1,424.71/2,137.29 = 500.32/x
  3. Step 3: Cross multiply
    1,424.71x = 2,137.29 × 500.32
  4. Step 4: Simplify right side
    1,424.71x = 1,069,328.93
  5. Step 5: Solve for x
    x = 1,069,328.93/1,424.71
  6. Step 6: Final answer
    x = 750.56

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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.