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Finding the Fourth Proportional to 658,674.42, 908,958.84 and 372,188.34

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Solution

The fourth proportional to 658,674.42, 908,958.84 and 372,188.34 is: 513,613.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,674.42 : 908,958.84 = 372,188.34 : x
  2. Step 2: Convert to fraction form
    658,674.42/908,958.84 = 372,188.34/x
  3. Step 3: Cross multiply
    658,674.42x = 908,958.84 × 372,188.34
  4. Step 4: Simplify right side
    658,674.42x = 338,303,881,787.93
  5. Step 5: Solve for x
    x = 338,303,881,787.93/658,674.42
  6. Step 6: Final answer
    x = 513,613.21

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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.