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Finding the Fourth Proportional to 517,254.80, 775,495.76 and 356,873.18

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Solution

The fourth proportional to 517,254.80, 775,495.76 and 356,873.18 is: 535,043.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,254.80 : 775,495.76 = 356,873.18 : x
  2. Step 2: Convert to fraction form
    517,254.80/775,495.76 = 356,873.18/x
  3. Step 3: Cross multiply
    517,254.80x = 775,495.76 × 356,873.18
  4. Step 4: Simplify right side
    517,254.80x = 276,753,632,285.87
  5. Step 5: Solve for x
    x = 276,753,632,285.87/517,254.80
  6. Step 6: Final answer
    x = 535,043.15

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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.