Home / 824,708.80-1,236,343.20-319,614.40

Finding the Fourth Proportional to 824,708.80, 1,236,343.20 and 319,614.40

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Solution

The fourth proportional to 824,708.80, 1,236,343.20 and 319,614.40 is: 479,142.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,708.80 : 1,236,343.20 = 319,614.40 : x
  2. Step 2: Convert to fraction form
    824,708.80/1,236,343.20 = 319,614.40/x
  3. Step 3: Cross multiply
    824,708.80x = 1,236,343.20 × 319,614.40
  4. Step 4: Simplify right side
    824,708.80x = 395,153,090,062.08
  5. Step 5: Solve for x
    x = 395,153,090,062.08/824,708.80
  6. Step 6: Final answer
    x = 479,142.57

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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.