Home / 891,074.50-1,229,682.81-488,666.50

Finding the Fourth Proportional to 891,074.50, 1,229,682.81 and 488,666.50

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Solution

The fourth proportional to 891,074.50, 1,229,682.81 and 488,666.50 is: 674,359.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,074.50 : 1,229,682.81 = 488,666.50 : x
  2. Step 2: Convert to fraction form
    891,074.50/1,229,682.81 = 488,666.50/x
  3. Step 3: Cross multiply
    891,074.50x = 1,229,682.81 × 488,666.50
  4. Step 4: Simplify right side
    891,074.50x = 600,904,794,872.87
  5. Step 5: Solve for x
    x = 600,904,794,872.87/891,074.50
  6. Step 6: Final answer
    x = 674,359.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.