Home / 991,712.24-1,368,571.92-539,004.32

Finding the Fourth Proportional to 991,712.24, 1,368,571.92 and 539,004.32

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Solution

The fourth proportional to 991,712.24, 1,368,571.92 and 539,004.32 is: 743,830.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,712.24 : 1,368,571.92 = 539,004.32 : x
  2. Step 2: Convert to fraction form
    991,712.24/1,368,571.92 = 539,004.32/x
  3. Step 3: Cross multiply
    991,712.24x = 1,368,571.92 × 539,004.32
  4. Step 4: Simplify right side
    991,712.24x = 737,666,177,110.69
  5. Step 5: Solve for x
    x = 737,666,177,110.69/991,712.24
  6. Step 6: Final answer
    x = 743,830.87

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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.