Home / 536,568.12-739,724.14-428,040.81

Finding the Fourth Proportional to 536,568.12, 739,724.14 and 428,040.81

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Solution

The fourth proportional to 536,568.12, 739,724.14 and 428,040.81 is: 590,106.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,568.12 : 739,724.14 = 428,040.81 : x
  2. Step 2: Convert to fraction form
    536,568.12/739,724.14 = 428,040.81/x
  3. Step 3: Cross multiply
    536,568.12x = 739,724.14 × 428,040.81
  4. Step 4: Simplify right side
    536,568.12x = 316,632,120,062.15
  5. Step 5: Solve for x
    x = 316,632,120,062.15/536,568.12
  6. Step 6: Final answer
    x = 590,106.10

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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.