Home / 1,323,138.66-1,982,869.29-690,791.10

Finding the Fourth Proportional to 1,323,138.66, 1,982,869.29 and 690,791.10

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Solution

The fourth proportional to 1,323,138.66, 1,982,869.29 and 690,791.10 is: 1,035,226.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,138.66 : 1,982,869.29 = 690,791.10 : x
  2. Step 2: Convert to fraction form
    1,323,138.66/1,982,869.29 = 690,791.10/x
  3. Step 3: Cross multiply
    1,323,138.66x = 1,982,869.29 × 690,791.10
  4. Step 4: Simplify right side
    1,323,138.66x = 1,369,748,457,995.32
  5. Step 5: Solve for x
    x = 1,369,748,457,995.32/1,323,138.66
  6. Step 6: Final answer
    x = 1,035,226.69

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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.