Home / 1,186,974.72-1,637,987.04-677,677.05

Finding the Fourth Proportional to 1,186,974.72, 1,637,987.04 and 677,677.05

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Solution

The fourth proportional to 1,186,974.72, 1,637,987.04 and 677,677.05 is: 935,172.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,974.72 : 1,637,987.04 = 677,677.05 : x
  2. Step 2: Convert to fraction form
    1,186,974.72/1,637,987.04 = 677,677.05/x
  3. Step 3: Cross multiply
    1,186,974.72x = 1,637,987.04 × 677,677.05
  4. Step 4: Simplify right side
    1,186,974.72x = 1,110,026,225,205.43
  5. Step 5: Solve for x
    x = 1,110,026,225,205.43/1,186,974.72
  6. Step 6: Final answer
    x = 935,172.59

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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.