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Finding the Fourth Proportional to 516,612.26, 774,182.46 and 380,606.75

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Solution

The fourth proportional to 516,612.26, 774,182.46 and 380,606.75 is: 570,367.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,612.26 : 774,182.46 = 380,606.75 : x
  2. Step 2: Convert to fraction form
    516,612.26/774,182.46 = 380,606.75/x
  3. Step 3: Cross multiply
    516,612.26x = 774,182.46 × 380,606.75
  4. Step 4: Simplify right side
    516,612.26x = 294,659,064,233.66
  5. Step 5: Solve for x
    x = 294,659,064,233.66/516,612.26
  6. Step 6: Final answer
    x = 570,367.93

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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.