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Finding the Fourth Proportional to 477,789.70, 659,333.28 and 262,909.66

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Solution

The fourth proportional to 477,789.70, 659,333.28 and 262,909.66 is: 362,806.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,789.70 : 659,333.28 = 262,909.66 : x
  2. Step 2: Convert to fraction form
    477,789.70/659,333.28 = 262,909.66/x
  3. Step 3: Cross multiply
    477,789.70x = 659,333.28 × 262,909.66
  4. Step 4: Simplify right side
    477,789.70x = 173,345,088,471.49
  5. Step 5: Solve for x
    x = 173,345,088,471.49/477,789.70
  6. Step 6: Final answer
    x = 362,806.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.