Home / 918,644.75-1,377,878.02-278,954.02

Finding the Fourth Proportional to 918,644.75, 1,377,878.02 and 278,954.02

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Solution

The fourth proportional to 918,644.75, 1,377,878.02 and 278,954.02 is: 418,403.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,644.75 : 1,377,878.02 = 278,954.02 : x
  2. Step 2: Convert to fraction form
    918,644.75/1,377,878.02 = 278,954.02/x
  3. Step 3: Cross multiply
    918,644.75x = 1,377,878.02 × 278,954.02
  4. Step 4: Simplify right side
    918,644.75x = 384,364,612,759.20
  5. Step 5: Solve for x
    x = 384,364,612,759.20/918,644.75
  6. Step 6: Final answer
    x = 418,403.97

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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.