Home / 855,370.24-1,280,499-517,388.08

Finding the Fourth Proportional to 855,370.24, 1,280,499 and 517,388.08

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Solution

The fourth proportional to 855,370.24, 1,280,499 and 517,388.08 is: 774,535.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,370.24 : 1,280,499 = 517,388.08 : x
  2. Step 2: Convert to fraction form
    855,370.24/1,280,499 = 517,388.08/x
  3. Step 3: Cross multiply
    855,370.24x = 1,280,499 × 517,388.08
  4. Step 4: Simplify right side
    855,370.24x = 662,514,919,051.92
  5. Step 5: Solve for x
    x = 662,514,919,051.92/855,370.24
  6. Step 6: Final answer
    x = 774,535.85

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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.