Home / 817,781.26-1,226,923.02-418,702.22

Finding the Fourth Proportional to 817,781.26, 1,226,923.02 and 418,702.22

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Solution

The fourth proportional to 817,781.26, 1,226,923.02 and 418,702.22 is: 628,181.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,781.26 : 1,226,923.02 = 418,702.22 : x
  2. Step 2: Convert to fraction form
    817,781.26/1,226,923.02 = 418,702.22/x
  3. Step 3: Cross multiply
    817,781.26x = 1,226,923.02 × 418,702.22
  4. Step 4: Simplify right side
    817,781.26x = 513,715,395,310.41
  5. Step 5: Solve for x
    x = 513,715,395,310.41/817,781.26
  6. Step 6: Final answer
    x = 628,181.91

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1.5x scale

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.