Home / 808,868.20-1,213,302.30-543,447.40

Finding the Fourth Proportional to 808,868.20, 1,213,302.30 and 543,447.40

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Solution

The fourth proportional to 808,868.20, 1,213,302.30 and 543,447.40 is: 815,171.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,868.20 : 1,213,302.30 = 543,447.40 : x
  2. Step 2: Convert to fraction form
    808,868.20/1,213,302.30 = 543,447.40/x
  3. Step 3: Cross multiply
    808,868.20x = 1,213,302.30 × 543,447.40
  4. Step 4: Simplify right side
    808,868.20x = 659,365,980,349.02
  5. Step 5: Solve for x
    x = 659,365,980,349.02/808,868.20
  6. Step 6: Final answer
    x = 815,171.10

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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.