Home / 1,189,181.48-1,641,061.98-645,303.44

Finding the Fourth Proportional to 1,189,181.48, 1,641,061.98 and 645,303.44

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Solution

The fourth proportional to 1,189,181.48, 1,641,061.98 and 645,303.44 is: 890,514.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,181.48 : 1,641,061.98 = 645,303.44 : x
  2. Step 2: Convert to fraction form
    1,189,181.48/1,641,061.98 = 645,303.44/x
  3. Step 3: Cross multiply
    1,189,181.48x = 1,641,061.98 × 645,303.44
  4. Step 4: Simplify right side
    1,189,181.48x = 1,058,982,940,947.21
  5. Step 5: Solve for x
    x = 1,058,982,940,947.21/1,189,181.48
  6. Step 6: Final answer
    x = 890,514.16

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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.