Home / 609,815.12-914,868.05-210,459.38

Finding the Fourth Proportional to 609,815.12, 914,868.05 and 210,459.38

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Solution

The fourth proportional to 609,815.12, 914,868.05 and 210,459.38 is: 315,739.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,815.12 : 914,868.05 = 210,459.38 : x
  2. Step 2: Convert to fraction form
    609,815.12/914,868.05 = 210,459.38/x
  3. Step 3: Cross multiply
    609,815.12x = 914,868.05 × 210,459.38
  4. Step 4: Simplify right side
    609,815.12x = 192,542,556,958.17
  5. Step 5: Solve for x
    x = 192,542,556,958.17/609,815.12
  6. Step 6: Final answer
    x = 315,739.23

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1.5x scale

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.