Home / 426,829.40-640,055.50-227,102.44

Finding the Fourth Proportional to 426,829.40, 640,055.50 and 227,102.44

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Solution

The fourth proportional to 426,829.40, 640,055.50 and 227,102.44 is: 340,553.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,829.40 : 640,055.50 = 227,102.44 : x
  2. Step 2: Convert to fraction form
    426,829.40/640,055.50 = 227,102.44/x
  3. Step 3: Cross multiply
    426,829.40x = 640,055.50 × 227,102.44
  4. Step 4: Simplify right side
    426,829.40x = 145,358,165,785.42
  5. Step 5: Solve for x
    x = 145,358,165,785.42/426,829.40
  6. Step 6: Final answer
    x = 340,553.31

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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.