Home / 1,321,118.91-1,823,147.60-777,275.19

Finding the Fourth Proportional to 1,321,118.91, 1,823,147.60 and 777,275.19

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Solution

The fourth proportional to 1,321,118.91, 1,823,147.60 and 777,275.19 is: 1,072,641.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,118.91 : 1,823,147.60 = 777,275.19 : x
  2. Step 2: Convert to fraction form
    1,321,118.91/1,823,147.60 = 777,275.19/x
  3. Step 3: Cross multiply
    1,321,118.91x = 1,823,147.60 × 777,275.19
  4. Step 4: Simplify right side
    1,321,118.91x = 1,417,087,393,301.67
  5. Step 5: Solve for x
    x = 1,417,087,393,301.67/1,321,118.91
  6. Step 6: Final answer
    x = 1,072,641.82

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Double scale
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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.