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Finding the Fourth Proportional to 477,451.71, 715,215.96 and 220,922.76

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Solution

The fourth proportional to 477,451.71, 715,215.96 and 220,922.76 is: 330,939.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,451.71 : 715,215.96 = 220,922.76 : x
  2. Step 2: Convert to fraction form
    477,451.71/715,215.96 = 220,922.76/x
  3. Step 3: Cross multiply
    477,451.71x = 715,215.96 × 220,922.76
  4. Step 4: Simplify right side
    477,451.71x = 158,007,483,879.25
  5. Step 5: Solve for x
    x = 158,007,483,879.25/477,451.71
  6. Step 6: Final answer
    x = 330,939.19

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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.