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Finding the Fourth Proportional to 1,065,657.97, 1,598,738.15 and 345,944.21

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Solution

The fourth proportional to 1,065,657.97, 1,598,738.15 and 345,944.21 is: 518,997.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065,657.97 : 1,598,738.15 = 345,944.21 : x
  2. Step 2: Convert to fraction form
    1,065,657.97/1,598,738.15 = 345,944.21/x
  3. Step 3: Cross multiply
    1,065,657.97x = 1,598,738.15 × 345,944.21
  4. Step 4: Simplify right side
    1,065,657.97x = 553,074,206,298.61
  5. Step 5: Solve for x
    x = 553,074,206,298.61/1,065,657.97
  6. Step 6: Final answer
    x = 518,997.86

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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.