Home / 1,188,740.76-1,640,462.24-679,454.07

Finding the Fourth Proportional to 1,188,740.76, 1,640,462.24 and 679,454.07

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Solution

The fourth proportional to 1,188,740.76, 1,640,462.24 and 679,454.07 is: 937,646.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,740.76 : 1,640,462.24 = 679,454.07 : x
  2. Step 2: Convert to fraction form
    1,188,740.76/1,640,462.24 = 679,454.07/x
  3. Step 3: Cross multiply
    1,188,740.76x = 1,640,462.24 × 679,454.07
  4. Step 4: Simplify right side
    1,188,740.76x = 1,114,618,741,196.22
  5. Step 5: Solve for x
    x = 1,114,618,741,196.22/1,188,740.76
  6. Step 6: Final answer
    x = 937,646.61

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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.