Home / 1,188,747.07-1,640,470.95-679,460.38

Finding the Fourth Proportional to 1,188,747.07, 1,640,470.95 and 679,460.38

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Solution

The fourth proportional to 1,188,747.07, 1,640,470.95 and 679,460.38 is: 937,655.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,747.07 : 1,640,470.95 = 679,460.38 : x
  2. Step 2: Convert to fraction form
    1,188,747.07/1,640,470.95 = 679,460.38/x
  3. Step 3: Cross multiply
    1,188,747.07x = 1,640,470.95 × 679,460.38
  4. Step 4: Simplify right side
    1,188,747.07x = 1,114,635,010,964.78
  5. Step 5: Solve for x
    x = 1,114,635,010,964.78/1,188,747.07
  6. Step 6: Final answer
    x = 937,655.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.