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Finding the Fourth Proportional to 562,871.34, 776,747.39 and 321,149.52

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Solution

The fourth proportional to 562,871.34, 776,747.39 and 321,149.52 is: 443,177.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,871.34 : 776,747.39 = 321,149.52 : x
  2. Step 2: Convert to fraction form
    562,871.34/776,747.39 = 321,149.52/x
  3. Step 3: Cross multiply
    562,871.34x = 776,747.39 × 321,149.52
  4. Step 4: Simplify right side
    562,871.34x = 249,452,049,854.01
  5. Step 5: Solve for x
    x = 249,452,049,854.01/562,871.34
  6. Step 6: Final answer
    x = 443,177.74

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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.