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Finding the Fourth Proportional to 635,749.07, 877,334.02 and 349,287.57

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Solution

The fourth proportional to 635,749.07, 877,334.02 and 349,287.57 is: 482,017.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,749.07 : 877,334.02 = 349,287.57 : x
  2. Step 2: Convert to fraction form
    635,749.07/877,334.02 = 349,287.57/x
  3. Step 3: Cross multiply
    635,749.07x = 877,334.02 × 349,287.57
  4. Step 4: Simplify right side
    635,749.07x = 306,441,867,050.91
  5. Step 5: Solve for x
    x = 306,441,867,050.91/635,749.07
  6. Step 6: Final answer
    x = 482,017.02

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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.