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Finding the Fourth Proportional to 552,421.44, 762,334.05 and 310,703.91

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Solution

The fourth proportional to 552,421.44, 762,334.05 and 310,703.91 is: 428,767.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,421.44 : 762,334.05 = 310,703.91 : x
  2. Step 2: Convert to fraction form
    552,421.44/762,334.05 = 310,703.91/x
  3. Step 3: Cross multiply
    552,421.44x = 762,334.05 × 310,703.91
  4. Step 4: Simplify right side
    552,421.44x = 236,860,170,061.14
  5. Step 5: Solve for x
    x = 236,860,170,061.14/552,421.44
  6. Step 6: Final answer
    x = 428,767.16

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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.