Home / 658,620.82-908,827.18-372,085.57

Finding the Fourth Proportional to 658,620.82, 908,827.18 and 372,085.57

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Solution

The fourth proportional to 658,620.82, 908,827.18 and 372,085.57 is: 513,438.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,620.82 : 908,827.18 = 372,085.57 : x
  2. Step 2: Convert to fraction form
    658,620.82/908,827.18 = 372,085.57/x
  3. Step 3: Cross multiply
    658,620.82x = 908,827.18 × 372,085.57
  4. Step 4: Simplify right side
    658,620.82x = 338,161,479,301.79
  5. Step 5: Solve for x
    x = 338,161,479,301.79/658,620.82
  6. Step 6: Final answer
    x = 513,438.79

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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.