Home / 1,189,526.28-1,641,502.24-645,650.48

Finding the Fourth Proportional to 1,189,526.28, 1,641,502.24 and 645,650.48

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Solution

The fourth proportional to 1,189,526.28, 1,641,502.24 and 645,650.48 is: 890,973.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,526.28 : 1,641,502.24 = 645,650.48 : x
  2. Step 2: Convert to fraction form
    1,189,526.28/1,641,502.24 = 645,650.48/x
  3. Step 3: Cross multiply
    1,189,526.28x = 1,641,502.24 × 645,650.48
  4. Step 4: Simplify right side
    1,189,526.28x = 1,059,836,699,355.44
  5. Step 5: Solve for x
    x = 1,059,836,699,355.44/1,189,526.28
  6. Step 6: Final answer
    x = 890,973.76

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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.