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Finding the Fourth Proportional to 473,003.80, 709,505.70 and 340,811.80

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Solution

The fourth proportional to 473,003.80, 709,505.70 and 340,811.80 is: 511,217.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,003.80 : 709,505.70 = 340,811.80 : x
  2. Step 2: Convert to fraction form
    473,003.80/709,505.70 = 340,811.80/x
  3. Step 3: Cross multiply
    473,003.80x = 709,505.70 × 340,811.80
  4. Step 4: Simplify right side
    473,003.80x = 241,807,914,727.26
  5. Step 5: Solve for x
    x = 241,807,914,727.26/473,003.80
  6. Step 6: Final answer
    x = 511,217.70

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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.