Home / 876,752.20-1,315,202.77-308,084.11

Finding the Fourth Proportional to 876,752.20, 1,315,202.77 and 308,084.11

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Solution

The fourth proportional to 876,752.20, 1,315,202.77 and 308,084.11 is: 462,152.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,752.20 : 1,315,202.77 = 308,084.11 : x
  2. Step 2: Convert to fraction form
    876,752.20/1,315,202.77 = 308,084.11/x
  3. Step 3: Cross multiply
    876,752.20x = 1,315,202.77 × 308,084.11
  4. Step 4: Simplify right side
    876,752.20x = 405,193,071,962.08
  5. Step 5: Solve for x
    x = 405,193,071,962.08/876,752.20
  6. Step 6: Final answer
    x = 462,152.33

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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.