Home / 1,186,910.01-1,637,937.40-643,045.82

Finding the Fourth Proportional to 1,186,910.01, 1,637,937.40 and 643,045.82

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Solution

The fourth proportional to 1,186,910.01, 1,637,937.40 and 643,045.82 is: 887,404.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,910.01 : 1,637,937.40 = 643,045.82 : x
  2. Step 2: Convert to fraction form
    1,186,910.01/1,637,937.40 = 643,045.82/x
  3. Step 3: Cross multiply
    1,186,910.01x = 1,637,937.40 × 643,045.82
  4. Step 4: Simplify right side
    1,186,910.01x = 1,053,268,799,113.48
  5. Step 5: Solve for x
    x = 1,053,268,799,113.48/1,186,910.01
  6. Step 6: Final answer
    x = 887,404.09

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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.