Home / 1,138,072.86-1,707,092.28-339,357.78

Finding the Fourth Proportional to 1,138,072.86, 1,707,092.28 and 339,357.78

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Solution

The fourth proportional to 1,138,072.86, 1,707,092.28 and 339,357.78 is: 509,031.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,072.86 : 1,707,092.28 = 339,357.78 : x
  2. Step 2: Convert to fraction form
    1,138,072.86/1,707,092.28 = 339,357.78/x
  3. Step 3: Cross multiply
    1,138,072.86x = 1,707,092.28 × 339,357.78
  4. Step 4: Simplify right side
    1,138,072.86x = 579,315,046,395.94
  5. Step 5: Solve for x
    x = 579,315,046,395.94/1,138,072.86
  6. Step 6: Final answer
    x = 509,031.60

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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.