Home / 865,125.40-1,297,785.30-266,081.80

Finding the Fourth Proportional to 865,125.40, 1,297,785.30 and 266,081.80

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Solution

The fourth proportional to 865,125.40, 1,297,785.30 and 266,081.80 is: 399,152.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,125.40 : 1,297,785.30 = 266,081.80 : x
  2. Step 2: Convert to fraction form
    865,125.40/1,297,785.30 = 266,081.80/x
  3. Step 3: Cross multiply
    865,125.40x = 1,297,785.30 × 266,081.80
  4. Step 4: Simplify right side
    865,125.40x = 345,317,048,637.54
  5. Step 5: Solve for x
    x = 345,317,048,637.54/865,125.40
  6. Step 6: Final answer
    x = 399,152.60

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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.