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Finding the Fourth Proportional to 544,056.60, 815,288.10 and 487,896.60

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Solution

The fourth proportional to 544,056.60, 815,288.10 and 487,896.60 is: 731,130.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,056.60 : 815,288.10 = 487,896.60 : x
  2. Step 2: Convert to fraction form
    544,056.60/815,288.10 = 487,896.60/x
  3. Step 3: Cross multiply
    544,056.60x = 815,288.10 × 487,896.60
  4. Step 4: Simplify right side
    544,056.60x = 397,776,292,010.46
  5. Step 5: Solve for x
    x = 397,776,292,010.46/544,056.60
  6. Step 6: Final answer
    x = 731,130.35

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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.