Home / 1,434,478.17-1,979,579.87-789,896.83

Finding the Fourth Proportional to 1,434,478.17, 1,979,579.87 and 789,896.83

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Solution

The fourth proportional to 1,434,478.17, 1,979,579.87 and 789,896.83 is: 1,090,057.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,478.17 : 1,979,579.87 = 789,896.83 : x
  2. Step 2: Convert to fraction form
    1,434,478.17/1,979,579.87 = 789,896.83/x
  3. Step 3: Cross multiply
    1,434,478.17x = 1,979,579.87 × 789,896.83
  4. Step 4: Simplify right side
    1,434,478.17x = 1,563,663,864,044.81
  5. Step 5: Solve for x
    x = 1,563,663,864,044.81/1,434,478.17
  6. Step 6: Final answer
    x = 1,090,057.62

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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.