Home / 643,067.11-887,368.67-371,222.58

Finding the Fourth Proportional to 643,067.11, 887,368.67 and 371,222.58

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Solution

The fourth proportional to 643,067.11, 887,368.67 and 371,222.58 is: 512,250.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,067.11 : 887,368.67 = 371,222.58 : x
  2. Step 2: Convert to fraction form
    643,067.11/887,368.67 = 371,222.58/x
  3. Step 3: Cross multiply
    643,067.11x = 887,368.67 × 371,222.58
  4. Step 4: Simplify right side
    643,067.11x = 329,411,287,088.57
  5. Step 5: Solve for x
    x = 329,411,287,088.57/643,067.11
  6. Step 6: Final answer
    x = 512,250.25

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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.