Home / 690,123.12-952,391.25-375,815.94

Finding the Fourth Proportional to 690,123.12, 952,391.25 and 375,815.94

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Solution

The fourth proportional to 690,123.12, 952,391.25 and 375,815.94 is: 518,637.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,123.12 : 952,391.25 = 375,815.94 : x
  2. Step 2: Convert to fraction form
    690,123.12/952,391.25 = 375,815.94/x
  3. Step 3: Cross multiply
    690,123.12x = 952,391.25 × 375,815.94
  4. Step 4: Simplify right side
    690,123.12x = 357,923,812,866.53
  5. Step 5: Solve for x
    x = 357,923,812,866.53/690,123.12
  6. Step 6: Final answer
    x = 518,637.62

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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.