Home / 657,669.87-907,736.09-385,825.10

Finding the Fourth Proportional to 657,669.87, 907,736.09 and 385,825.10

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Solution

The fourth proportional to 657,669.87, 907,736.09 and 385,825.10 is: 532,527.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,669.87 : 907,736.09 = 385,825.10 : x
  2. Step 2: Convert to fraction form
    657,669.87/907,736.09 = 385,825.10/x
  3. Step 3: Cross multiply
    657,669.87x = 907,736.09 × 385,825.10
  4. Step 4: Simplify right side
    657,669.87x = 350,227,361,230.05
  5. Step 5: Solve for x
    x = 350,227,361,230.05/657,669.87
  6. Step 6: Final answer
    x = 532,527.61

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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.