Home / 579,076.80-868,658.40-205,051.20

Finding the Fourth Proportional to 579,076.80, 868,658.40 and 205,051.20

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Solution

The fourth proportional to 579,076.80, 868,658.40 and 205,051.20 is: 307,592.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,076.80 : 868,658.40 = 205,051.20 : x
  2. Step 2: Convert to fraction form
    579,076.80/868,658.40 = 205,051.20/x
  3. Step 3: Cross multiply
    579,076.80x = 868,658.40 × 205,051.20
  4. Step 4: Simplify right side
    579,076.80x = 178,119,447,310.08
  5. Step 5: Solve for x
    x = 178,119,447,310.08/579,076.80
  6. Step 6: Final answer
    x = 307,592.10

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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.