Home / 1,189,210.37-1,641,114.62-645,346.04

Finding the Fourth Proportional to 1,189,210.37, 1,641,114.62 and 645,346.04

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Solution

The fourth proportional to 1,189,210.37, 1,641,114.62 and 645,346.04 is: 890,579.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,210.37 : 1,641,114.62 = 645,346.04 : x
  2. Step 2: Convert to fraction form
    1,189,210.37/1,641,114.62 = 645,346.04/x
  3. Step 3: Cross multiply
    1,189,210.37x = 1,641,114.62 × 645,346.04
  4. Step 4: Simplify right side
    1,189,210.37x = 1,059,086,815,820.92
  5. Step 5: Solve for x
    x = 1,059,086,815,820.92/1,189,210.37
  6. Step 6: Final answer
    x = 890,579.87

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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.