Home / 874,381.53-1,311,618.87-275,389.50

Finding the Fourth Proportional to 874,381.53, 1,311,618.87 and 275,389.50

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Solution

The fourth proportional to 874,381.53, 1,311,618.87 and 275,389.50 is: 413,098.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,381.53 : 1,311,618.87 = 275,389.50 : x
  2. Step 2: Convert to fraction form
    874,381.53/1,311,618.87 = 275,389.50/x
  3. Step 3: Cross multiply
    874,381.53x = 1,311,618.87 × 275,389.50
  4. Step 4: Simplify right side
    874,381.53x = 361,206,064,799.87
  5. Step 5: Solve for x
    x = 361,206,064,799.87/874,381.53
  6. Step 6: Final answer
    x = 413,098.92

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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.