Home / 725,300.05-1,000,895.88-403,010.97

Finding the Fourth Proportional to 725,300.05, 1,000,895.88 and 403,010.97

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Solution

The fourth proportional to 725,300.05, 1,000,895.88 and 403,010.97 is: 556,145.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,300.05 : 1,000,895.88 = 403,010.97 : x
  2. Step 2: Convert to fraction form
    725,300.05/1,000,895.88 = 403,010.97/x
  3. Step 3: Cross multiply
    725,300.05x = 1,000,895.88 × 403,010.97
  4. Step 4: Simplify right side
    725,300.05x = 403,372,019,467.80
  5. Step 5: Solve for x
    x = 403,372,019,467.80/725,300.05
  6. Step 6: Final answer
    x = 556,145.03

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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.