Home / 1,159,939.76-1,600,734.29-643,727.10

Finding the Fourth Proportional to 1,159,939.76, 1,600,734.29 and 643,727.10

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Solution

The fourth proportional to 1,159,939.76, 1,600,734.29 and 643,727.10 is: 888,353.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,939.76 : 1,600,734.29 = 643,727.10 : x
  2. Step 2: Convert to fraction form
    1,159,939.76/1,600,734.29 = 643,727.10/x
  3. Step 3: Cross multiply
    1,159,939.76x = 1,600,734.29 × 643,727.10
  4. Step 4: Simplify right side
    1,159,939.76x = 1,030,436,042,372.26
  5. Step 5: Solve for x
    x = 1,030,436,042,372.26/1,159,939.76
  6. Step 6: Final answer
    x = 888,353.07

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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.