Home / 753,219-1,039,189.32-426,487.44

Finding the Fourth Proportional to 753,219, 1,039,189.32 and 426,487.44

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Solution

The fourth proportional to 753,219, 1,039,189.32 and 426,487.44 is: 588,409.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,219 : 1,039,189.32 = 426,487.44 : x
  2. Step 2: Convert to fraction form
    753,219/1,039,189.32 = 426,487.44/x
  3. Step 3: Cross multiply
    753,219x = 1,039,189.32 × 426,487.44
  4. Step 4: Simplify right side
    753,219x = 443,201,192,762.14
  5. Step 5: Solve for x
    x = 443,201,192,762.14/753,219
  6. Step 6: Final answer
    x = 588,409.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.