Home / 743,945.64-1,115,498.21-680,467.92

Finding the Fourth Proportional to 743,945.64, 1,115,498.21 and 680,467.92

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Solution

The fourth proportional to 743,945.64, 1,115,498.21 and 680,467.92 is: 1,020,317.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,945.64 : 1,115,498.21 = 680,467.92 : x
  2. Step 2: Convert to fraction form
    743,945.64/1,115,498.21 = 680,467.92/x
  3. Step 3: Cross multiply
    743,945.64x = 1,115,498.21 × 680,467.92
  4. Step 4: Simplify right side
    743,945.64x = 759,060,743,320.08
  5. Step 5: Solve for x
    x = 759,060,743,320.08/743,945.64
  6. Step 6: Final answer
    x = 1,020,317.48

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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.