Home / 1,170,428.90-1,756,226.55-665,377.70

Finding the Fourth Proportional to 1,170,428.90, 1,756,226.55 and 665,377.70

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Solution

The fourth proportional to 1,170,428.90, 1,756,226.55 and 665,377.70 is: 998,398.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,428.90 : 1,756,226.55 = 665,377.70 : x
  2. Step 2: Convert to fraction form
    1,170,428.90/1,756,226.55 = 665,377.70/x
  3. Step 3: Cross multiply
    1,170,428.90x = 1,756,226.55 × 665,377.70
  4. Step 4: Simplify right side
    1,170,428.90x = 1,168,553,982,517.94
  5. Step 5: Solve for x
    x = 1,168,553,982,517.94/1,170,428.90
  6. Step 6: Final answer
    x = 998,398.09

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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.