Home / 1,321,488.25-1,823,499.07-777,504.40

Finding the Fourth Proportional to 1,321,488.25, 1,823,499.07 and 777,504.40

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Solution

The fourth proportional to 1,321,488.25, 1,823,499.07 and 777,504.40 is: 1,072,865.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,488.25 : 1,823,499.07 = 777,504.40 : x
  2. Step 2: Convert to fraction form
    1,321,488.25/1,823,499.07 = 777,504.40/x
  3. Step 3: Cross multiply
    1,321,488.25x = 1,823,499.07 × 777,504.40
  4. Step 4: Simplify right side
    1,321,488.25x = 1,417,778,550,320.91
  5. Step 5: Solve for x
    x = 1,417,778,550,320.91/1,321,488.25
  6. Step 6: Final answer
    x = 1,072,865.04

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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.