Home / 991,192.95-1,367,874.32-561,472.97

Finding the Fourth Proportional to 991,192.95, 1,367,874.32 and 561,472.97

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Solution

The fourth proportional to 991,192.95, 1,367,874.32 and 561,472.97 is: 774,848.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,192.95 : 1,367,874.32 = 561,472.97 : x
  2. Step 2: Convert to fraction form
    991,192.95/1,367,874.32 = 561,472.97/x
  3. Step 3: Cross multiply
    991,192.95x = 1,367,874.32 × 561,472.97
  4. Step 4: Simplify right side
    991,192.95x = 768,024,447,390.39
  5. Step 5: Solve for x
    x = 768,024,447,390.39/991,192.95
  6. Step 6: Final answer
    x = 774,848.58

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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.