Home / 1,126,201.12-1,554,182.64-642,756.57

Finding the Fourth Proportional to 1,126,201.12, 1,554,182.64 and 642,756.57

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Solution

The fourth proportional to 1,126,201.12, 1,554,182.64 and 642,756.57 is: 887,018.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,201.12 : 1,554,182.64 = 642,756.57 : x
  2. Step 2: Convert to fraction form
    1,126,201.12/1,554,182.64 = 642,756.57/x
  3. Step 3: Cross multiply
    1,126,201.12x = 1,554,182.64 × 642,756.57
  4. Step 4: Simplify right side
    1,126,201.12x = 998,961,102,839.95
  5. Step 5: Solve for x
    x = 998,961,102,839.95/1,126,201.12
  6. Step 6: Final answer
    x = 887,018.39

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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.