Home / 433,436.13-649,563.66-208,780.20

Finding the Fourth Proportional to 433,436.13, 649,563.66 and 208,780.20

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Solution

The fourth proportional to 433,436.13, 649,563.66 and 208,780.20 is: 312,885.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,436.13 : 649,563.66 = 208,780.20 : x
  2. Step 2: Convert to fraction form
    433,436.13/649,563.66 = 208,780.20/x
  3. Step 3: Cross multiply
    433,436.13x = 649,563.66 × 208,780.20
  4. Step 4: Simplify right side
    433,436.13x = 135,616,030,847.53
  5. Step 5: Solve for x
    x = 135,616,030,847.53/433,436.13
  6. Step 6: Final answer
    x = 312,885.85

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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.