Home / 781,031.25-1,171,098.54-307,458.27

Finding the Fourth Proportional to 781,031.25, 1,171,098.54 and 307,458.27

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Solution

The fourth proportional to 781,031.25, 1,171,098.54 and 307,458.27 is: 461,010.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,031.25 : 1,171,098.54 = 307,458.27 : x
  2. Step 2: Convert to fraction form
    781,031.25/1,171,098.54 = 307,458.27/x
  3. Step 3: Cross multiply
    781,031.25x = 1,171,098.54 × 307,458.27
  4. Step 4: Simplify right side
    781,031.25x = 360,063,931,107.93
  5. Step 5: Solve for x
    x = 360,063,931,107.93/781,031.25
  6. Step 6: Final answer
    x = 461,010.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.