Home / 1,226,472.50-1,692,557.98-689,928.50

Finding the Fourth Proportional to 1,226,472.50, 1,692,557.98 and 689,928.50

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Solution

The fourth proportional to 1,226,472.50, 1,692,557.98 and 689,928.50 is: 952,115.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,472.50 : 1,692,557.98 = 689,928.50 : x
  2. Step 2: Convert to fraction form
    1,226,472.50/1,692,557.98 = 689,928.50/x
  3. Step 3: Cross multiply
    1,226,472.50x = 1,692,557.98 × 689,928.50
  4. Step 4: Simplify right side
    1,226,472.50x = 1,167,743,988,304.43
  5. Step 5: Solve for x
    x = 1,167,743,988,304.43/1,226,472.50
  6. Step 6: Final answer
    x = 952,115.92

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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.