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Finding the Fourth Proportional to 477,212.09, 715,780.91 and 277,405.03

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Solution

The fourth proportional to 477,212.09, 715,780.91 and 277,405.03 is: 416,085.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,212.09 : 715,780.91 = 277,405.03 : x
  2. Step 2: Convert to fraction form
    477,212.09/715,780.91 = 277,405.03/x
  3. Step 3: Cross multiply
    477,212.09x = 715,780.91 × 277,405.03
  4. Step 4: Simplify right side
    477,212.09x = 198,561,224,811.98
  5. Step 5: Solve for x
    x = 198,561,224,811.98/477,212.09
  6. Step 6: Final answer
    x = 416,085.91

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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.