Home / 1,172,631.04-1,618,231.36-663,322.56

Finding the Fourth Proportional to 1,172,631.04, 1,618,231.36 and 663,322.56

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Solution

The fourth proportional to 1,172,631.04, 1,618,231.36 and 663,322.56 is: 915,385.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,631.04 : 1,618,231.36 = 663,322.56 : x
  2. Step 2: Convert to fraction form
    1,172,631.04/1,618,231.36 = 663,322.56/x
  3. Step 3: Cross multiply
    1,172,631.04x = 1,618,231.36 × 663,322.56
  4. Step 4: Simplify right side
    1,172,631.04x = 1,073,409,368,387.48
  5. Step 5: Solve for x
    x = 1,073,409,368,387.48/1,172,631.04
  6. Step 6: Final answer
    x = 915,385.43

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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.