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Finding the Fourth Proportional to 652,287.94, 900,255.77 and 397,786.75

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Solution

The fourth proportional to 652,287.94, 900,255.77 and 397,786.75 is: 549,005.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,287.94 : 900,255.77 = 397,786.75 : x
  2. Step 2: Convert to fraction form
    652,287.94/900,255.77 = 397,786.75/x
  3. Step 3: Cross multiply
    652,287.94x = 900,255.77 × 397,786.75
  4. Step 4: Simplify right side
    652,287.94x = 358,109,814,169.18
  5. Step 5: Solve for x
    x = 358,109,814,169.18/652,287.94
  6. Step 6: Final answer
    x = 549,005.73

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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.