Home / 811,779.64-1,120,569.90-726,748.92

Finding the Fourth Proportional to 811,779.64, 1,120,569.90 and 726,748.92

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Solution

The fourth proportional to 811,779.64, 1,120,569.90 and 726,748.92 is: 1,003,194.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,779.64 : 1,120,569.90 = 726,748.92 : x
  2. Step 2: Convert to fraction form
    811,779.64/1,120,569.90 = 726,748.92/x
  3. Step 3: Cross multiply
    811,779.64x = 1,120,569.90 × 726,748.92
  4. Step 4: Simplify right side
    811,779.64x = 814,372,964,609.51
  5. Step 5: Solve for x
    x = 814,372,964,609.51/811,779.64
  6. Step 6: Final answer
    x = 1,003,194.62

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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.