Home / 725,057.19-1,000,578.42-402,797.34

Finding the Fourth Proportional to 725,057.19, 1,000,578.42 and 402,797.34

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Solution

The fourth proportional to 725,057.19, 1,000,578.42 and 402,797.34 is: 555,860.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,057.19 : 1,000,578.42 = 402,797.34 : x
  2. Step 2: Convert to fraction form
    725,057.19/1,000,578.42 = 402,797.34/x
  3. Step 3: Cross multiply
    725,057.19x = 1,000,578.42 × 402,797.34
  4. Step 4: Simplify right side
    725,057.19x = 403,030,326,037.40
  5. Step 5: Solve for x
    x = 403,030,326,037.40/725,057.19
  6. Step 6: Final answer
    x = 555,860.05

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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.