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Finding the Fourth Proportional to 502,367.33, 752,763.38 and 427,178.27

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Solution

The fourth proportional to 502,367.33, 752,763.38 and 427,178.27 is: 640,097.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,367.33 : 752,763.38 = 427,178.27 : x
  2. Step 2: Convert to fraction form
    502,367.33/752,763.38 = 427,178.27/x
  3. Step 3: Cross multiply
    502,367.33x = 752,763.38 × 427,178.27
  4. Step 4: Simplify right side
    502,367.33x = 321,564,158,133.77
  5. Step 5: Solve for x
    x = 321,564,158,133.77/502,367.33
  6. Step 6: Final answer
    x = 640,097.67

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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.