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Finding the Fourth Proportional to 568,274.86, 783,973.30 and 347,521.84

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Solution

The fourth proportional to 568,274.86, 783,973.30 and 347,521.84 is: 479,429.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,274.86 : 783,973.30 = 347,521.84 : x
  2. Step 2: Convert to fraction form
    568,274.86/783,973.30 = 347,521.84/x
  3. Step 3: Cross multiply
    568,274.86x = 783,973.30 × 347,521.84
  4. Step 4: Simplify right side
    568,274.86x = 272,447,839,807.01
  5. Step 5: Solve for x
    x = 272,447,839,807.01/568,274.86
  6. Step 6: Final answer
    x = 479,429.69

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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.