Home / 1,187,001.36-1,638,179.10-677,780.28

Finding the Fourth Proportional to 1,187,001.36, 1,638,179.10 and 677,780.28

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Solution

The fourth proportional to 1,187,001.36, 1,638,179.10 and 677,780.28 is: 935,403.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,001.36 : 1,638,179.10 = 677,780.28 : x
  2. Step 2: Convert to fraction form
    1,187,001.36/1,638,179.10 = 677,780.28/x
  3. Step 3: Cross multiply
    1,187,001.36x = 1,638,179.10 × 677,780.28
  4. Step 4: Simplify right side
    1,187,001.36x = 1,110,325,489,088.15
  5. Step 5: Solve for x
    x = 1,110,325,489,088.15/1,187,001.36
  6. Step 6: Final answer
    x = 935,403.72

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1.5x scale

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.