Home / 1,087,688.72-1,501,049.64-628,947.24

Finding the Fourth Proportional to 1,087,688.72, 1,501,049.64 and 628,947.24

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Solution

The fourth proportional to 1,087,688.72, 1,501,049.64 and 628,947.24 is: 867,969.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,688.72 : 1,501,049.64 = 628,947.24 : x
  2. Step 2: Convert to fraction form
    1,087,688.72/1,501,049.64 = 628,947.24/x
  3. Step 3: Cross multiply
    1,087,688.72x = 1,501,049.64 × 628,947.24
  4. Step 4: Simplify right side
    1,087,688.72x = 944,081,028,180.99
  5. Step 5: Solve for x
    x = 944,081,028,180.99/1,087,688.72
  6. Step 6: Final answer
    x = 867,969.87

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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.