Home / 884,374.28-1,325,427.42-643,878.92

Finding the Fourth Proportional to 884,374.28, 1,325,427.42 and 643,878.92

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Solution

The fourth proportional to 884,374.28, 1,325,427.42 and 643,878.92 is: 964,992.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,374.28 : 1,325,427.42 = 643,878.92 : x
  2. Step 2: Convert to fraction form
    884,374.28/1,325,427.42 = 643,878.92/x
  3. Step 3: Cross multiply
    884,374.28x = 1,325,427.42 × 643,878.92
  4. Step 4: Simplify right side
    884,374.28x = 853,414,775,727.99
  5. Step 5: Solve for x
    x = 853,414,775,727.99/884,374.28
  6. Step 6: Final answer
    x = 964,992.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.