Home / 486,784.40-730,121.26-131,826.10

Finding the Fourth Proportional to 486,784.40, 730,121.26 and 131,826.10

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Solution

The fourth proportional to 486,784.40, 730,121.26 and 131,826.10 is: 197,724.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,784.40 : 730,121.26 = 131,826.10 : x
  2. Step 2: Convert to fraction form
    486,784.40/730,121.26 = 131,826.10/x
  3. Step 3: Cross multiply
    486,784.40x = 730,121.26 × 131,826.10
  4. Step 4: Simplify right side
    486,784.40x = 96,249,038,232.89
  5. Step 5: Solve for x
    x = 96,249,038,232.89/486,784.40
  6. Step 6: Final answer
    x = 197,724.16

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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.