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Finding the Fourth Proportional to 556,891.28, 768,505.44 and 302,242.58

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Solution

The fourth proportional to 556,891.28, 768,505.44 and 302,242.58 is: 417,092.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,891.28 : 768,505.44 = 302,242.58 : x
  2. Step 2: Convert to fraction form
    556,891.28/768,505.44 = 302,242.58/x
  3. Step 3: Cross multiply
    556,891.28x = 768,505.44 × 302,242.58
  4. Step 4: Simplify right side
    556,891.28x = 232,275,066,929.64
  5. Step 5: Solve for x
    x = 232,275,066,929.64/556,891.28
  6. Step 6: Final answer
    x = 417,092.30

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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.