Home / 579,540.07-868,113.46-429,949.27

Finding the Fourth Proportional to 579,540.07, 868,113.46 and 429,949.27

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Solution

The fourth proportional to 579,540.07, 868,113.46 and 429,949.27 is: 644,036.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,540.07 : 868,113.46 = 429,949.27 : x
  2. Step 2: Convert to fraction form
    579,540.07/868,113.46 = 429,949.27/x
  3. Step 3: Cross multiply
    579,540.07x = 868,113.46 × 429,949.27
  4. Step 4: Simplify right side
    579,540.07x = 373,244,748,404.17
  5. Step 5: Solve for x
    x = 373,244,748,404.17/579,540.07
  6. Step 6: Final answer
    x = 644,036.14

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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.