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Finding the Fourth Proportional to 556,712.31, 768,242.39 and 302,058.03

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Solution

The fourth proportional to 556,712.31, 768,242.39 and 302,058.03 is: 416,828.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,712.31 : 768,242.39 = 302,058.03 : x
  2. Step 2: Convert to fraction form
    556,712.31/768,242.39 = 302,058.03/x
  3. Step 3: Cross multiply
    556,712.31x = 768,242.39 × 302,058.03
  4. Step 4: Simplify right side
    556,712.31x = 232,053,781,375.60
  5. Step 5: Solve for x
    x = 232,053,781,375.60/556,712.31
  6. Step 6: Final answer
    x = 416,828.90

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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.