Home / 840,579.50-1,159,999.71-538,773.50

Finding the Fourth Proportional to 840,579.50, 1,159,999.71 and 538,773.50

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Solution

The fourth proportional to 840,579.50, 1,159,999.71 and 538,773.50 is: 743,507.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,579.50 : 1,159,999.71 = 538,773.50 : x
  2. Step 2: Convert to fraction form
    840,579.50/1,159,999.71 = 538,773.50/x
  3. Step 3: Cross multiply
    840,579.50x = 1,159,999.71 × 538,773.50
  4. Step 4: Simplify right side
    840,579.50x = 624,977,103,755.69
  5. Step 5: Solve for x
    x = 624,977,103,755.69/840,579.50
  6. Step 6: Final answer
    x = 743,507.43

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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.