Home / 936,175.68-1,404,362.40-305,138.88

Finding the Fourth Proportional to 936,175.68, 1,404,362.40 and 305,138.88

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Solution

The fourth proportional to 936,175.68, 1,404,362.40 and 305,138.88 is: 457,740.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,175.68 : 1,404,362.40 = 305,138.88 : x
  2. Step 2: Convert to fraction form
    936,175.68/1,404,362.40 = 305,138.88/x
  3. Step 3: Cross multiply
    936,175.68x = 1,404,362.40 × 305,138.88
  4. Step 4: Simplify right side
    936,175.68x = 428,525,569,850.11
  5. Step 5: Solve for x
    x = 428,525,569,850.11/936,175.68
  6. Step 6: Final answer
    x = 457,740.55

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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.