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Finding the Fourth Proportional to 404,311.47, 605,975.27 and 286,016.91

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Solution

The fourth proportional to 404,311.47, 605,975.27 and 286,016.91 is: 428,677.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,311.47 : 605,975.27 = 286,016.91 : x
  2. Step 2: Convert to fraction form
    404,311.47/605,975.27 = 286,016.91/x
  3. Step 3: Cross multiply
    404,311.47x = 605,975.27 × 286,016.91
  4. Step 4: Simplify right side
    404,311.47x = 173,319,172,831.73
  5. Step 5: Solve for x
    x = 173,319,172,831.73/404,311.47
  6. Step 6: Final answer
    x = 428,677.36

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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.