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Finding the Fourth Proportional to 508,564.11, 701,827.38 and 279,142.86

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Solution

The fourth proportional to 508,564.11, 701,827.38 and 279,142.86 is: 385,222.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,564.11 : 701,827.38 = 279,142.86 : x
  2. Step 2: Convert to fraction form
    508,564.11/701,827.38 = 279,142.86/x
  3. Step 3: Cross multiply
    508,564.11x = 701,827.38 × 279,142.86
  4. Step 4: Simplify right side
    508,564.11x = 195,910,102,079.51
  5. Step 5: Solve for x
    x = 195,910,102,079.51/508,564.11
  6. Step 6: Final answer
    x = 385,222.04

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1.5x scale

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.