Home / 644,548.28-966,490.32-289,257.68

Finding the Fourth Proportional to 644,548.28, 966,490.32 and 289,257.68

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Solution

The fourth proportional to 644,548.28, 966,490.32 and 289,257.68 is: 433,737.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,548.28 : 966,490.32 = 289,257.68 : x
  2. Step 2: Convert to fraction form
    644,548.28/966,490.32 = 289,257.68/x
  3. Step 3: Cross multiply
    644,548.28x = 966,490.32 × 289,257.68
  4. Step 4: Simplify right side
    644,548.28x = 279,564,747,705.66
  5. Step 5: Solve for x
    x = 279,564,747,705.66/644,548.28
  6. Step 6: Final answer
    x = 433,737.48

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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.