Home / 725,400.58-1,000,742.20-452,995.60

Finding the Fourth Proportional to 725,400.58, 1,000,742.20 and 452,995.60

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Solution

The fourth proportional to 725,400.58, 1,000,742.20 and 452,995.60 is: 624,939.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,400.58 : 1,000,742.20 = 452,995.60 : x
  2. Step 2: Convert to fraction form
    725,400.58/1,000,742.20 = 452,995.60/x
  3. Step 3: Cross multiply
    725,400.58x = 1,000,742.20 × 452,995.60
  4. Step 4: Simplify right side
    725,400.58x = 453,331,813,334.32
  5. Step 5: Solve for x
    x = 453,331,813,334.32/725,400.58
  6. Step 6: Final answer
    x = 624,939.97

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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.