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Finding the Fourth Proportional to 556,932.36, 768,487.86 and 330,668.04

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Solution

The fourth proportional to 556,932.36, 768,487.86 and 330,668.04 is: 456,275.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,932.36 : 768,487.86 = 330,668.04 : x
  2. Step 2: Convert to fraction form
    556,932.36/768,487.86 = 330,668.04/x
  3. Step 3: Cross multiply
    556,932.36x = 768,487.86 × 330,668.04
  4. Step 4: Simplify right side
    556,932.36x = 254,114,374,429.99
  5. Step 5: Solve for x
    x = 254,114,374,429.99/556,932.36
  6. Step 6: Final answer
    x = 456,275.11

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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.