Home / 918,647.33-1,377,881.89-278,956.60

Finding the Fourth Proportional to 918,647.33, 1,377,881.89 and 278,956.60

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Solution

The fourth proportional to 918,647.33, 1,377,881.89 and 278,956.60 is: 418,407.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,647.33 : 1,377,881.89 = 278,956.60 : x
  2. Step 2: Convert to fraction form
    918,647.33/1,377,881.89 = 278,956.60/x
  3. Step 3: Cross multiply
    918,647.33x = 1,377,881.89 × 278,956.60
  4. Step 4: Simplify right side
    918,647.33x = 384,369,243,093.88
  5. Step 5: Solve for x
    x = 384,369,243,093.88/918,647.33
  6. Step 6: Final answer
    x = 418,407.84

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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.