Home / 918,644.79-1,377,878.08-278,954.07

Finding the Fourth Proportional to 918,644.79, 1,377,878.08 and 278,954.07

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Solution

The fourth proportional to 918,644.79, 1,377,878.08 and 278,954.07 is: 418,404.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,644.79 : 1,377,878.08 = 278,954.07 : x
  2. Step 2: Convert to fraction form
    918,644.79/1,377,878.08 = 278,954.07/x
  3. Step 3: Cross multiply
    918,644.79x = 1,377,878.08 × 278,954.07
  4. Step 4: Simplify right side
    918,644.79x = 384,364,698,379.79
  5. Step 5: Solve for x
    x = 384,364,698,379.79/918,644.79
  6. Step 6: Final answer
    x = 418,404.05

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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.