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Finding the Fourth Proportional to 513,360.59, 770,739.50 and 288,879.62

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Solution

The fourth proportional to 513,360.59, 770,739.50 and 288,879.62 is: 433,712.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,360.59 : 770,739.50 = 288,879.62 : x
  2. Step 2: Convert to fraction form
    513,360.59/770,739.50 = 288,879.62/x
  3. Step 3: Cross multiply
    513,360.59x = 770,739.50 × 288,879.62
  4. Step 4: Simplify right side
    513,360.59x = 222,650,930,747.49
  5. Step 5: Solve for x
    x = 222,650,930,747.49/513,360.59
  6. Step 6: Final answer
    x = 433,712.55

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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.