Home / 668,843.20-1,003,264.80-313,893.10

Finding the Fourth Proportional to 668,843.20, 1,003,264.80 and 313,893.10

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Solution

The fourth proportional to 668,843.20, 1,003,264.80 and 313,893.10 is: 470,839.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,843.20 : 1,003,264.80 = 313,893.10 : x
  2. Step 2: Convert to fraction form
    668,843.20/1,003,264.80 = 313,893.10/x
  3. Step 3: Cross multiply
    668,843.20x = 1,003,264.80 × 313,893.10
  4. Step 4: Simplify right side
    668,843.20x = 314,917,898,192.88
  5. Step 5: Solve for x
    x = 314,917,898,192.88/668,843.20
  6. Step 6: Final answer
    x = 470,839.65

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Similar ratio
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1.5x scale

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.