Home / 918,644.86-1,377,878.20-278,954.14

Finding the Fourth Proportional to 918,644.86, 1,377,878.20 and 278,954.14

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Solution

The fourth proportional to 918,644.86, 1,377,878.20 and 278,954.14 is: 418,404.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,644.86 : 1,377,878.20 = 278,954.14 : x
  2. Step 2: Convert to fraction form
    918,644.86/1,377,878.20 = 278,954.14/x
  3. Step 3: Cross multiply
    918,644.86x = 1,377,878.20 × 278,954.14
  4. Step 4: Simplify right side
    918,644.86x = 384,364,822,871.91
  5. Step 5: Solve for x
    x = 384,364,822,871.91/918,644.86
  6. Step 6: Final answer
    x = 418,404.15

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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.