Home / 1,189,422.04-1,641,403.96-645,557.77

Finding the Fourth Proportional to 1,189,422.04, 1,641,403.96 and 645,557.77

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Solution

The fourth proportional to 1,189,422.04, 1,641,403.96 and 645,557.77 is: 890,870.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,422.04 : 1,641,403.96 = 645,557.77 : x
  2. Step 2: Convert to fraction form
    1,189,422.04/1,641,403.96 = 645,557.77/x
  3. Step 3: Cross multiply
    1,189,422.04x = 1,641,403.96 × 645,557.77
  4. Step 4: Simplify right side
    1,189,422.04x = 1,059,621,080,086.77
  5. Step 5: Solve for x
    x = 1,059,621,080,086.77/1,189,422.04
  6. Step 6: Final answer
    x = 890,870.56

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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.