Home / 991,186.42-1,367,846.85-538,480.66

Finding the Fourth Proportional to 991,186.42, 1,367,846.85 and 538,480.66

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Solution

The fourth proportional to 991,186.42, 1,367,846.85 and 538,480.66 is: 743,108.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,186.42 : 1,367,846.85 = 538,480.66 : x
  2. Step 2: Convert to fraction form
    991,186.42/1,367,846.85 = 538,480.66/x
  3. Step 3: Cross multiply
    991,186.42x = 1,367,846.85 × 538,480.66
  4. Step 4: Simplify right side
    991,186.42x = 736,559,074,566.92
  5. Step 5: Solve for x
    x = 736,559,074,566.92/991,186.42
  6. Step 6: Final answer
    x = 743,108.52

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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.