Home / 1,438,765.09-2,157,943.50-491,998.21

Finding the Fourth Proportional to 1,438,765.09, 2,157,943.50 and 491,998.21

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Solution

The fourth proportional to 1,438,765.09, 2,157,943.50 and 491,998.21 is: 737,927.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,765.09 : 2,157,943.50 = 491,998.21 : x
  2. Step 2: Convert to fraction form
    1,438,765.09/2,157,943.50 = 491,998.21/x
  3. Step 3: Cross multiply
    1,438,765.09x = 2,157,943.50 × 491,998.21
  4. Step 4: Simplify right side
    1,438,765.09x = 1,061,704,333,886.28
  5. Step 5: Solve for x
    x = 1,061,704,333,886.28/1,438,765.09
  6. Step 6: Final answer
    x = 737,927.51

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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.