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Finding the Fourth Proportional to 500,640.78, 750,961.16 and 332,489.54

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Solution

The fourth proportional to 500,640.78, 750,961.16 and 332,489.54 is: 498,734.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,640.78 : 750,961.16 = 332,489.54 : x
  2. Step 2: Convert to fraction form
    500,640.78/750,961.16 = 332,489.54/x
  3. Step 3: Cross multiply
    500,640.78x = 750,961.16 × 332,489.54
  4. Step 4: Simplify right side
    500,640.78x = 249,686,732,108.06
  5. Step 5: Solve for x
    x = 249,686,732,108.06/500,640.78
  6. Step 6: Final answer
    x = 498,734.30

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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.