Home / 1,172,022.75-1,756,870.20-665,535.42

Finding the Fourth Proportional to 1,172,022.75, 1,756,870.20 and 665,535.42

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Solution

The fourth proportional to 1,172,022.75, 1,756,870.20 and 665,535.42 is: 997,642.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,022.75 : 1,756,870.20 = 665,535.42 : x
  2. Step 2: Convert to fraction form
    1,172,022.75/1,756,870.20 = 665,535.42/x
  3. Step 3: Cross multiply
    1,172,022.75x = 1,756,870.20 × 665,535.42
  4. Step 4: Simplify right side
    1,172,022.75x = 1,169,259,346,442.48
  5. Step 5: Solve for x
    x = 1,169,259,346,442.48/1,172,022.75
  6. Step 6: Final answer
    x = 997,642.19

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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.