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Finding the Fourth Proportional to 575,407.33, 863,359.97 and 308,856.58

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Solution

The fourth proportional to 575,407.33, 863,359.97 and 308,856.58 is: 463,418.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,407.33 : 863,359.97 = 308,856.58 : x
  2. Step 2: Convert to fraction form
    575,407.33/863,359.97 = 308,856.58/x
  3. Step 3: Cross multiply
    575,407.33x = 863,359.97 × 308,856.58
  4. Step 4: Simplify right side
    575,407.33x = 266,654,403,940.42
  5. Step 5: Solve for x
    x = 266,654,403,940.42/575,407.33
  6. Step 6: Final answer
    x = 463,418.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.