Home / 1,231,870.68-1,699,963.20-688,015.62

Finding the Fourth Proportional to 1,231,870.68, 1,699,963.20 and 688,015.62

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Solution

The fourth proportional to 1,231,870.68, 1,699,963.20 and 688,015.62 is: 949,451.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,870.68 : 1,699,963.20 = 688,015.62 : x
  2. Step 2: Convert to fraction form
    1,231,870.68/1,699,963.20 = 688,015.62/x
  3. Step 3: Cross multiply
    1,231,870.68x = 1,699,963.20 × 688,015.62
  4. Step 4: Simplify right side
    1,231,870.68x = 1,169,601,235,025.18
  5. Step 5: Solve for x
    x = 1,169,601,235,025.18/1,231,870.68
  6. Step 6: Final answer
    x = 949,451.31

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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.