Home / 428,301.20-591,344.34-382,833.47

Finding the Fourth Proportional to 428,301.20, 591,344.34 and 382,833.47

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Solution

The fourth proportional to 428,301.20, 591,344.34 and 382,833.47 is: 528,568.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,301.20 : 591,344.34 = 382,833.47 : x
  2. Step 2: Convert to fraction form
    428,301.20/591,344.34 = 382,833.47/x
  3. Step 3: Cross multiply
    428,301.20x = 591,344.34 × 382,833.47
  4. Step 4: Simplify right side
    428,301.20x = 226,386,405,647.06
  5. Step 5: Solve for x
    x = 226,386,405,647.06/428,301.20
  6. Step 6: Final answer
    x = 528,568.23

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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.