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Finding the Fourth Proportional to 451,629, 623,345.22 and 270,381.38

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Solution

The fourth proportional to 451,629, 623,345.22 and 270,381.38 is: 373,184.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,629 : 623,345.22 = 270,381.38 : x
  2. Step 2: Convert to fraction form
    451,629/623,345.22 = 270,381.38/x
  3. Step 3: Cross multiply
    451,629x = 623,345.22 × 270,381.38
  4. Step 4: Simplify right side
    451,629x = 168,540,937,683.28
  5. Step 5: Solve for x
    x = 168,540,937,683.28/451,629
  6. Step 6: Final answer
    x = 373,184.49

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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.