Home / 545,740.20-818,999.10-230,423.40

Finding the Fourth Proportional to 545,740.20, 818,999.10 and 230,423.40

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Solution

The fourth proportional to 545,740.20, 818,999.10 and 230,423.40 is: 345,799.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,740.20 : 818,999.10 = 230,423.40 : x
  2. Step 2: Convert to fraction form
    545,740.20/818,999.10 = 230,423.40/x
  3. Step 3: Cross multiply
    545,740.20x = 818,999.10 × 230,423.40
  4. Step 4: Simplify right side
    545,740.20x = 188,716,557,218.94
  5. Step 5: Solve for x
    x = 188,716,557,218.94/545,740.20
  6. Step 6: Final answer
    x = 345,799.26

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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.