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Finding the Fourth Proportional to 487,525.83, 672,765.11 and 283,577.14

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Solution

The fourth proportional to 487,525.83, 672,765.11 and 283,577.14 is: 391,324.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,525.83 : 672,765.11 = 283,577.14 : x
  2. Step 2: Convert to fraction form
    487,525.83/672,765.11 = 283,577.14/x
  3. Step 3: Cross multiply
    487,525.83x = 672,765.11 × 283,577.14
  4. Step 4: Simplify right side
    487,525.83x = 190,780,804,367.70
  5. Step 5: Solve for x
    x = 190,780,804,367.70/487,525.83
  6. Step 6: Final answer
    x = 391,324.51

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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.