Home / 1,189,322.25-1,641,265.56-645,457.92

Finding the Fourth Proportional to 1,189,322.25, 1,641,265.56 and 645,457.92

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Solution

The fourth proportional to 1,189,322.25, 1,641,265.56 and 645,457.92 is: 890,732.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,322.25 : 1,641,265.56 = 645,457.92 : x
  2. Step 2: Convert to fraction form
    1,189,322.25/1,641,265.56 = 645,457.92/x
  3. Step 3: Cross multiply
    1,189,322.25x = 1,641,265.56 × 645,457.92
  4. Step 4: Simplify right side
    1,189,322.25x = 1,059,367,854,525.24
  5. Step 5: Solve for x
    x = 1,059,367,854,525.24/1,189,322.25
  6. Step 6: Final answer
    x = 890,732.39

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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.