Home / 852,001.40-1,277,516.10-319,539.80

Finding the Fourth Proportional to 852,001.40, 1,277,516.10 and 319,539.80

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Solution

The fourth proportional to 852,001.40, 1,277,516.10 and 319,539.80 is: 479,127.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,001.40 : 1,277,516.10 = 319,539.80 : x
  2. Step 2: Convert to fraction form
    852,001.40/1,277,516.10 = 319,539.80/x
  3. Step 3: Cross multiply
    852,001.40x = 1,277,516.10 × 319,539.80
  4. Step 4: Simplify right side
    852,001.40x = 408,217,239,090.78
  5. Step 5: Solve for x
    x = 408,217,239,090.78/852,001.40
  6. Step 6: Final answer
    x = 479,127.43

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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.