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Finding the Fourth Proportional to 477,939.69, 659,479.60 and 273,953.07

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Solution

The fourth proportional to 477,939.69, 659,479.60 and 273,953.07 is: 378,011.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,939.69 : 659,479.60 = 273,953.07 : x
  2. Step 2: Convert to fraction form
    477,939.69/659,479.60 = 273,953.07/x
  3. Step 3: Cross multiply
    477,939.69x = 659,479.60 × 273,953.07
  4. Step 4: Simplify right side
    477,939.69x = 180,666,463,376.50
  5. Step 5: Solve for x
    x = 180,666,463,376.50/477,939.69
  6. Step 6: Final answer
    x = 378,011.01

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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.