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Finding the Fourth Proportional to 638,887.52, 881,708.48 and 370,615.52

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Solution

The fourth proportional to 638,887.52, 881,708.48 and 370,615.52 is: 511,474.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,887.52 : 881,708.48 = 370,615.52 : x
  2. Step 2: Convert to fraction form
    638,887.52/881,708.48 = 370,615.52/x
  3. Step 3: Cross multiply
    638,887.52x = 881,708.48 × 370,615.52
  4. Step 4: Simplify right side
    638,887.52x = 326,774,846,803.61
  5. Step 5: Solve for x
    x = 326,774,846,803.61/638,887.52
  6. Step 6: Final answer
    x = 511,474.77

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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.