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Finding the Fourth Proportional to 404,512.72, 606,277.08 and 286,218.32

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Solution

The fourth proportional to 404,512.72, 606,277.08 and 286,218.32 is: 428,979.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,512.72 : 606,277.08 = 286,218.32 : x
  2. Step 2: Convert to fraction form
    404,512.72/606,277.08 = 286,218.32/x
  3. Step 3: Cross multiply
    404,512.72x = 606,277.08 × 286,218.32
  4. Step 4: Simplify right side
    404,512.72x = 173,527,607,292.11
  5. Step 5: Solve for x
    x = 173,527,607,292.11/404,512.72
  6. Step 6: Final answer
    x = 428,979.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.