Home / 644,447.10-967,703.40-512,425.20

Finding the Fourth Proportional to 644,447.10, 967,703.40 and 512,425.20

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Solution

The fourth proportional to 644,447.10, 967,703.40 and 512,425.20 is: 769,458.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,447.10 : 967,703.40 = 512,425.20 : x
  2. Step 2: Convert to fraction form
    644,447.10/967,703.40 = 512,425.20/x
  3. Step 3: Cross multiply
    644,447.10x = 967,703.40 × 512,425.20
  4. Step 4: Simplify right side
    644,447.10x = 495,875,608,285.68
  5. Step 5: Solve for x
    x = 495,875,608,285.68/644,447.10
  6. Step 6: Final answer
    x = 769,458.98

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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.