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Finding the Fourth Proportional to 477,003.80, 715,505.70 and 344,811.80

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Solution

The fourth proportional to 477,003.80, 715,505.70 and 344,811.80 is: 517,217.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,003.80 : 715,505.70 = 344,811.80 : x
  2. Step 2: Convert to fraction form
    477,003.80/715,505.70 = 344,811.80/x
  3. Step 3: Cross multiply
    477,003.80x = 715,505.70 × 344,811.80
  4. Step 4: Simplify right side
    477,003.80x = 246,714,808,327.26
  5. Step 5: Solve for x
    x = 246,714,808,327.26/477,003.80
  6. Step 6: Final answer
    x = 517,217.70

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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.