Home / 1,321,488.75-1,823,499.75-777,504.90

Finding the Fourth Proportional to 1,321,488.75, 1,823,499.75 and 777,504.90

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Solution

The fourth proportional to 1,321,488.75, 1,823,499.75 and 777,504.90 is: 1,072,865.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,488.75 : 1,823,499.75 = 777,504.90 : x
  2. Step 2: Convert to fraction form
    1,321,488.75/1,823,499.75 = 777,504.90/x
  3. Step 3: Cross multiply
    1,321,488.75x = 1,823,499.75 × 777,504.90
  4. Step 4: Simplify right side
    1,321,488.75x = 1,417,779,990,773.78
  5. Step 5: Solve for x
    x = 1,417,779,990,773.78/1,321,488.75
  6. Step 6: Final answer
    x = 1,072,865.73

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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.