Home / 1,119,020.52-1,679,994.12-664,441.80

Finding the Fourth Proportional to 1,119,020.52, 1,679,994.12 and 664,441.80

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Solution

The fourth proportional to 1,119,020.52, 1,679,994.12 and 664,441.80 is: 997,531.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,020.52 : 1,679,994.12 = 664,441.80 : x
  2. Step 2: Convert to fraction form
    1,119,020.52/1,679,994.12 = 664,441.80/x
  3. Step 3: Cross multiply
    1,119,020.52x = 1,679,994.12 × 664,441.80
  4. Step 4: Simplify right side
    1,119,020.52x = 1,116,258,317,082.22
  5. Step 5: Solve for x
    x = 1,116,258,317,082.22/1,119,020.52
  6. Step 6: Final answer
    x = 997,531.59

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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.