Home / 885,722.70-1,328,584.05-511,308.30

Finding the Fourth Proportional to 885,722.70, 1,328,584.05 and 511,308.30

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Solution

The fourth proportional to 885,722.70, 1,328,584.05 and 511,308.30 is: 766,962.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,722.70 : 1,328,584.05 = 511,308.30 : x
  2. Step 2: Convert to fraction form
    885,722.70/1,328,584.05 = 511,308.30/x
  3. Step 3: Cross multiply
    885,722.70x = 1,328,584.05 × 511,308.30
  4. Step 4: Simplify right side
    885,722.70x = 679,316,052,012.62
  5. Step 5: Solve for x
    x = 679,316,052,012.62/885,722.70
  6. Step 6: Final answer
    x = 766,962.45

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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.