Home / 885,903.70-1,328,855.55-511,489.30

Finding the Fourth Proportional to 885,903.70, 1,328,855.55 and 511,489.30

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Solution

The fourth proportional to 885,903.70, 1,328,855.55 and 511,489.30 is: 767,233.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,903.70 : 1,328,855.55 = 511,489.30 : x
  2. Step 2: Convert to fraction form
    885,903.70/1,328,855.55 = 511,489.30/x
  3. Step 3: Cross multiply
    885,903.70x = 1,328,855.55 × 511,489.30
  4. Step 4: Simplify right side
    885,903.70x = 679,695,395,070.62
  5. Step 5: Solve for x
    x = 679,695,395,070.62/885,903.70
  6. Step 6: Final answer
    x = 767,233.95

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Similar ratio
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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.