Home / 1,189,153.92-1,641,036.83-645,289.83

Finding the Fourth Proportional to 1,189,153.92, 1,641,036.83 and 645,289.83

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Solution

The fourth proportional to 1,189,153.92, 1,641,036.83 and 645,289.83 is: 890,502.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,153.92 : 1,641,036.83 = 645,289.83 : x
  2. Step 2: Convert to fraction form
    1,189,153.92/1,641,036.83 = 645,289.83/x
  3. Step 3: Cross multiply
    1,189,153.92x = 1,641,036.83 × 645,289.83
  4. Step 4: Simplify right side
    1,189,153.92x = 1,058,944,373,827.99
  5. Step 5: Solve for x
    x = 1,058,944,373,827.99/1,189,153.92
  6. Step 6: Final answer
    x = 890,502.36

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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.