Home / 815,870.10-1,223,805.15-629,246.10

Finding the Fourth Proportional to 815,870.10, 1,223,805.15 and 629,246.10

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Solution

The fourth proportional to 815,870.10, 1,223,805.15 and 629,246.10 is: 943,869.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,870.10 : 1,223,805.15 = 629,246.10 : x
  2. Step 2: Convert to fraction form
    815,870.10/1,223,805.15 = 629,246.10/x
  3. Step 3: Cross multiply
    815,870.10x = 1,223,805.15 × 629,246.10
  4. Step 4: Simplify right side
    815,870.10x = 770,074,617,797.42
  5. Step 5: Solve for x
    x = 770,074,617,797.42/815,870.10
  6. Step 6: Final answer
    x = 943,869.15

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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.