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Finding the Fourth Proportional to 540,514.44, 745,905 and 298,803.24

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Solution

The fourth proportional to 540,514.44, 745,905 and 298,803.24 is: 412,345.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,514.44 : 745,905 = 298,803.24 : x
  2. Step 2: Convert to fraction form
    540,514.44/745,905 = 298,803.24/x
  3. Step 3: Cross multiply
    540,514.44x = 745,905 × 298,803.24
  4. Step 4: Simplify right side
    540,514.44x = 222,878,830,732.20
  5. Step 5: Solve for x
    x = 222,878,830,732.20/540,514.44
  6. Step 6: Final answer
    x = 412,345.75

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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.