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Finding the Fourth Proportional to 509,035.52, 763,483.55 and 281,751.54

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Solution

The fourth proportional to 509,035.52, 763,483.55 and 281,751.54 is: 422,588.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,035.52 : 763,483.55 = 281,751.54 : x
  2. Step 2: Convert to fraction form
    509,035.52/763,483.55 = 281,751.54/x
  3. Step 3: Cross multiply
    509,035.52x = 763,483.55 × 281,751.54
  4. Step 4: Simplify right side
    509,035.52x = 215,112,664,568.41
  5. Step 5: Solve for x
    x = 215,112,664,568.41/509,035.52
  6. Step 6: Final answer
    x = 422,588.72

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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.