Home / 750,680.12-1,036,013.09-428,439.04

Finding the Fourth Proportional to 750,680.12, 1,036,013.09 and 428,439.04

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Solution

The fourth proportional to 750,680.12, 1,036,013.09 and 428,439.04 is: 591,288.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,680.12 : 1,036,013.09 = 428,439.04 : x
  2. Step 2: Convert to fraction form
    750,680.12/1,036,013.09 = 428,439.04/x
  3. Step 3: Cross multiply
    750,680.12x = 1,036,013.09 × 428,439.04
  4. Step 4: Simplify right side
    750,680.12x = 443,868,453,707.03
  5. Step 5: Solve for x
    x = 443,868,453,707.03/750,680.12
  6. Step 6: Final answer
    x = 591,288.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.