Home / 725,764.25-1,001,588.84-403,479.72

Finding the Fourth Proportional to 725,764.25, 1,001,588.84 and 403,479.72

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Solution

The fourth proportional to 725,764.25, 1,001,588.84 and 403,479.72 is: 556,821.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,764.25 : 1,001,588.84 = 403,479.72 : x
  2. Step 2: Convert to fraction form
    725,764.25/1,001,588.84 = 403,479.72/x
  3. Step 3: Cross multiply
    725,764.25x = 1,001,588.84 × 403,479.72
  4. Step 4: Simplify right side
    725,764.25x = 404,120,782,700.93
  5. Step 5: Solve for x
    x = 404,120,782,700.93/725,764.25
  6. Step 6: Final answer
    x = 556,821.01

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1.5x scale

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.