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Finding the Fourth Proportional to 675,391.79, 932,091.25 and 385,010.28

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Solution

The fourth proportional to 675,391.79, 932,091.25 and 385,010.28 is: 531,343.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,391.79 : 932,091.25 = 385,010.28 : x
  2. Step 2: Convert to fraction form
    675,391.79/932,091.25 = 385,010.28/x
  3. Step 3: Cross multiply
    675,391.79x = 932,091.25 × 385,010.28
  4. Step 4: Simplify right side
    675,391.79x = 358,864,713,148.05
  5. Step 5: Solve for x
    x = 358,864,713,148.05/675,391.79
  6. Step 6: Final answer
    x = 531,343.02

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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.