Home / 1,085,345.21-1,498,462.49-698,340.57

Finding the Fourth Proportional to 1,085,345.21, 1,498,462.49 and 698,340.57

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Solution

The fourth proportional to 1,085,345.21, 1,498,462.49 and 698,340.57 is: 964,151.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,345.21 : 1,498,462.49 = 698,340.57 : x
  2. Step 2: Convert to fraction form
    1,085,345.21/1,498,462.49 = 698,340.57/x
  3. Step 3: Cross multiply
    1,085,345.21x = 1,498,462.49 × 698,340.57
  4. Step 4: Simplify right side
    1,085,345.21x = 1,046,437,145,898.52
  5. Step 5: Solve for x
    x = 1,046,437,145,898.52/1,085,345.21
  6. Step 6: Final answer
    x = 964,151.44

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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.