Home / 891,163.40-1,336,415.82-385,798.28

Finding the Fourth Proportional to 891,163.40, 1,336,415.82 and 385,798.28

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Solution

The fourth proportional to 891,163.40, 1,336,415.82 and 385,798.28 is: 578,554.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,163.40 : 1,336,415.82 = 385,798.28 : x
  2. Step 2: Convert to fraction form
    891,163.40/1,336,415.82 = 385,798.28/x
  3. Step 3: Cross multiply
    891,163.40x = 1,336,415.82 × 385,798.28
  4. Step 4: Simplify right side
    891,163.40x = 515,586,924,720.79
  5. Step 5: Solve for x
    x = 515,586,924,720.79/891,163.40
  6. Step 6: Final answer
    x = 578,554.87

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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.