Home / 890,375.80-1,335,688.44-291,384.04

Finding the Fourth Proportional to 890,375.80, 1,335,688.44 and 291,384.04

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Solution

The fourth proportional to 890,375.80, 1,335,688.44 and 291,384.04 is: 437,116.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,375.80 : 1,335,688.44 = 291,384.04 : x
  2. Step 2: Convert to fraction form
    890,375.80/1,335,688.44 = 291,384.04/x
  3. Step 3: Cross multiply
    890,375.80x = 1,335,688.44 × 291,384.04
  4. Step 4: Simplify right side
    890,375.80x = 389,198,285,693.14
  5. Step 5: Solve for x
    x = 389,198,285,693.14/890,375.80
  6. Step 6: Final answer
    x = 437,116.88

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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.