Home / 1,489,532.92-2,232,549.78-689,123.74

Finding the Fourth Proportional to 1,489,532.92, 2,232,549.78 and 689,123.74

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Solution

The fourth proportional to 1,489,532.92, 2,232,549.78 and 689,123.74 is: 1,032,876.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,532.92 : 2,232,549.78 = 689,123.74 : x
  2. Step 2: Convert to fraction form
    1,489,532.92/2,232,549.78 = 689,123.74/x
  3. Step 3: Cross multiply
    1,489,532.92x = 2,232,549.78 × 689,123.74
  4. Step 4: Simplify right side
    1,489,532.92x = 1,538,503,054,129.78
  5. Step 5: Solve for x
    x = 1,538,503,054,129.78/1,489,532.92
  6. Step 6: Final answer
    x = 1,032,876.17

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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.