Home / 459,937.20-690,020.60-160,422.08

Finding the Fourth Proportional to 459,937.20, 690,020.60 and 160,422.08

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Solution

The fourth proportional to 459,937.20, 690,020.60 and 160,422.08 is: 240,673.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,937.20 : 690,020.60 = 160,422.08 : x
  2. Step 2: Convert to fraction form
    459,937.20/690,020.60 = 160,422.08/x
  3. Step 3: Cross multiply
    459,937.20x = 690,020.60 × 160,422.08
  4. Step 4: Simplify right side
    459,937.20x = 110,694,538,570.85
  5. Step 5: Solve for x
    x = 110,694,538,570.85/459,937.20
  6. Step 6: Final answer
    x = 240,673.16

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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.