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Finding the Fourth Proportional to 508,252.77, 701,376.21 and 290,447.64

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Solution

The fourth proportional to 508,252.77, 701,376.21 and 290,447.64 is: 400,810.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,252.77 : 701,376.21 = 290,447.64 : x
  2. Step 2: Convert to fraction form
    508,252.77/701,376.21 = 290,447.64/x
  3. Step 3: Cross multiply
    508,252.77x = 701,376.21 × 290,447.64
  4. Step 4: Simplify right side
    508,252.77x = 203,713,064,946.64
  5. Step 5: Solve for x
    x = 203,713,064,946.64/508,252.77
  6. Step 6: Final answer
    x = 400,810.54

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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.