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Finding the Fourth Proportional to 675,438.82, 932,014.29 and 385,087.84

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Solution

The fourth proportional to 675,438.82, 932,014.29 and 385,087.84 is: 531,369.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,438.82 : 932,014.29 = 385,087.84 : x
  2. Step 2: Convert to fraction form
    675,438.82/932,014.29 = 385,087.84/x
  3. Step 3: Cross multiply
    675,438.82x = 932,014.29 × 385,087.84
  4. Step 4: Simplify right side
    675,438.82x = 358,907,369,785.23
  5. Step 5: Solve for x
    x = 358,907,369,785.23/675,438.82
  6. Step 6: Final answer
    x = 531,369.18

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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.