Home / 667,998.13-921,895.73-366,250.45

Finding the Fourth Proportional to 667,998.13, 921,895.73 and 366,250.45

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Solution

The fourth proportional to 667,998.13, 921,895.73 and 366,250.45 is: 505,457.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,998.13 : 921,895.73 = 366,250.45 : x
  2. Step 2: Convert to fraction form
    667,998.13/921,895.73 = 366,250.45/x
  3. Step 3: Cross multiply
    667,998.13x = 921,895.73 × 366,250.45
  4. Step 4: Simplify right side
    667,998.13x = 337,644,725,965.58
  5. Step 5: Solve for x
    x = 337,644,725,965.58/667,998.13
  6. Step 6: Final answer
    x = 505,457.59

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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.