Home / 1,270,505.25-1,905,703.20-323,847.72

Finding the Fourth Proportional to 1,270,505.25, 1,905,703.20 and 323,847.72

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Solution

The fourth proportional to 1,270,505.25, 1,905,703.20 and 323,847.72 is: 485,757.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,505.25 : 1,905,703.20 = 323,847.72 : x
  2. Step 2: Convert to fraction form
    1,270,505.25/1,905,703.20 = 323,847.72/x
  3. Step 3: Cross multiply
    1,270,505.25x = 1,905,703.20 × 323,847.72
  4. Step 4: Simplify right side
    1,270,505.25x = 617,157,636,316.70
  5. Step 5: Solve for x
    x = 617,157,636,316.70/1,270,505.25
  6. Step 6: Final answer
    x = 485,757.64

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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.