Home / 644,090.28-888,872.34-357,610.38

Finding the Fourth Proportional to 644,090.28, 888,872.34 and 357,610.38

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Solution

The fourth proportional to 644,090.28, 888,872.34 and 357,610.38 is: 493,517.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,090.28 : 888,872.34 = 357,610.38 : x
  2. Step 2: Convert to fraction form
    644,090.28/888,872.34 = 357,610.38/x
  3. Step 3: Cross multiply
    644,090.28x = 888,872.34 × 357,610.38
  4. Step 4: Simplify right side
    644,090.28x = 317,869,975,278.89
  5. Step 5: Solve for x
    x = 317,869,975,278.89/644,090.28
  6. Step 6: Final answer
    x = 493,517.73

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1.5x scale

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.