Home / 426,754.15-639,715.19-170,510.33

Finding the Fourth Proportional to 426,754.15, 639,715.19 and 170,510.33

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Solution

The fourth proportional to 426,754.15, 639,715.19 and 170,510.33 is: 255,599.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,754.15 : 639,715.19 = 170,510.33 : x
  2. Step 2: Convert to fraction form
    426,754.15/639,715.19 = 170,510.33/x
  3. Step 3: Cross multiply
    426,754.15x = 639,715.19 × 170,510.33
  4. Step 4: Simplify right side
    426,754.15x = 109,078,048,899.65
  5. Step 5: Solve for x
    x = 109,078,048,899.65/426,754.15
  6. Step 6: Final answer
    x = 255,599.27

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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.