Home / 1,189,227.03-1,641,134.35-645,362.81

Finding the Fourth Proportional to 1,189,227.03, 1,641,134.35 and 645,362.81

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Solution

The fourth proportional to 1,189,227.03, 1,641,134.35 and 645,362.81 is: 890,601.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,227.03 : 1,641,134.35 = 645,362.81 : x
  2. Step 2: Convert to fraction form
    1,189,227.03/1,641,134.35 = 645,362.81/x
  3. Step 3: Cross multiply
    1,189,227.03x = 1,641,134.35 × 645,362.81
  4. Step 4: Simplify right side
    1,189,227.03x = 1,059,127,074,458.81
  5. Step 5: Solve for x
    x = 1,059,127,074,458.81/1,189,227.03
  6. Step 6: Final answer
    x = 890,601.24

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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.