Home / 781,120.68-1,077,367.66-551,438.52

Finding the Fourth Proportional to 781,120.68, 1,077,367.66 and 551,438.52

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Solution

The fourth proportional to 781,120.68, 1,077,367.66 and 551,438.52 is: 760,576.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,120.68 : 1,077,367.66 = 551,438.52 : x
  2. Step 2: Convert to fraction form
    781,120.68/1,077,367.66 = 551,438.52/x
  3. Step 3: Cross multiply
    781,120.68x = 1,077,367.66 × 551,438.52
  4. Step 4: Simplify right side
    781,120.68x = 594,102,027,926.26
  5. Step 5: Solve for x
    x = 594,102,027,926.26/781,120.68
  6. Step 6: Final answer
    x = 760,576.49

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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.