Home / 1,126,905.15-1,554,540.77-691,419.63

Finding the Fourth Proportional to 1,126,905.15, 1,554,540.77 and 691,419.63

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Solution

The fourth proportional to 1,126,905.15, 1,554,540.77 and 691,419.63 is: 953,798.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,905.15 : 1,554,540.77 = 691,419.63 : x
  2. Step 2: Convert to fraction form
    1,126,905.15/1,554,540.77 = 691,419.63/x
  3. Step 3: Cross multiply
    1,126,905.15x = 1,554,540.77 × 691,419.63
  4. Step 4: Simplify right side
    1,126,905.15x = 1,074,840,004,013.32
  5. Step 5: Solve for x
    x = 1,074,840,004,013.32/1,126,905.15
  6. Step 6: Final answer
    x = 953,798.11

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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.