Home / 1,287,739.46-1,777,101.29-707,016.12

Finding the Fourth Proportional to 1,287,739.46, 1,777,101.29 and 707,016.12

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Solution

The fourth proportional to 1,287,739.46, 1,777,101.29 and 707,016.12 is: 975,693.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,739.46 : 1,777,101.29 = 707,016.12 : x
  2. Step 2: Convert to fraction form
    1,287,739.46/1,777,101.29 = 707,016.12/x
  3. Step 3: Cross multiply
    1,287,739.46x = 1,777,101.29 × 707,016.12
  4. Step 4: Simplify right side
    1,287,739.46x = 1,256,439,255,367.71
  5. Step 5: Solve for x
    x = 1,256,439,255,367.71/1,287,739.46
  6. Step 6: Final answer
    x = 975,693.69

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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.