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Finding the Fourth Proportional to 556,816.52, 768,407.30 and 302,167.71

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Solution

The fourth proportional to 556,816.52, 768,407.30 and 302,167.71 is: 416,991.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,816.52 : 768,407.30 = 302,167.71 : x
  2. Step 2: Convert to fraction form
    556,816.52/768,407.30 = 302,167.71/x
  3. Step 3: Cross multiply
    556,816.52x = 768,407.30 × 302,167.71
  4. Step 4: Simplify right side
    556,816.52x = 232,187,874,188.28
  5. Step 5: Solve for x
    x = 232,187,874,188.28/556,816.52
  6. Step 6: Final answer
    x = 416,991.71

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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.