Home / 1,086,487.56-1,629,337.68-487,140.21

Finding the Fourth Proportional to 1,086,487.56, 1,629,337.68 and 487,140.21

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Solution

The fourth proportional to 1,086,487.56, 1,629,337.68 and 487,140.21 is: 730,533.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,487.56 : 1,629,337.68 = 487,140.21 : x
  2. Step 2: Convert to fraction form
    1,086,487.56/1,629,337.68 = 487,140.21/x
  3. Step 3: Cross multiply
    1,086,487.56x = 1,629,337.68 × 487,140.21
  4. Step 4: Simplify right side
    1,086,487.56x = 793,715,899,596.11
  5. Step 5: Solve for x
    x = 793,715,899,596.11/1,086,487.56
  6. Step 6: Final answer
    x = 730,533.81

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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.