Home / 1,172,788.75-1,618,437.54-663,491.13

Finding the Fourth Proportional to 1,172,788.75, 1,618,437.54 and 663,491.13

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Solution

The fourth proportional to 1,172,788.75, 1,618,437.54 and 663,491.13 is: 915,611.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,788.75 : 1,618,437.54 = 663,491.13 : x
  2. Step 2: Convert to fraction form
    1,172,788.75/1,618,437.54 = 663,491.13/x
  3. Step 3: Cross multiply
    1,172,788.75x = 1,618,437.54 × 663,491.13
  4. Step 4: Simplify right side
    1,172,788.75x = 1,073,818,952,249.02
  5. Step 5: Solve for x
    x = 1,073,818,952,249.02/1,172,788.75
  6. Step 6: Final answer
    x = 915,611.57

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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.