Home / 690,156.89-952,194.98-418,137.83

Finding the Fourth Proportional to 690,156.89, 952,194.98 and 418,137.83

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Solution

The fourth proportional to 690,156.89, 952,194.98 and 418,137.83 is: 576,895.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,156.89 : 952,194.98 = 418,137.83 : x
  2. Step 2: Convert to fraction form
    690,156.89/952,194.98 = 418,137.83/x
  3. Step 3: Cross multiply
    690,156.89x = 952,194.98 × 418,137.83
  4. Step 4: Simplify right side
    690,156.89x = 398,148,735,822.43
  5. Step 5: Solve for x
    x = 398,148,735,822.43/690,156.89
  6. Step 6: Final answer
    x = 576,895.98

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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.