Home / 725,267.20-1,000,808.58-398,563.03

Finding the Fourth Proportional to 725,267.20, 1,000,808.58 and 398,563.03

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Solution

The fourth proportional to 725,267.20, 1,000,808.58 and 398,563.03 is: 549,983.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,267.20 : 1,000,808.58 = 398,563.03 : x
  2. Step 2: Convert to fraction form
    725,267.20/1,000,808.58 = 398,563.03/x
  3. Step 3: Cross multiply
    725,267.20x = 1,000,808.58 × 398,563.03
  4. Step 4: Simplify right side
    725,267.20x = 398,885,300,094.80
  5. Step 5: Solve for x
    x = 398,885,300,094.80/725,267.20
  6. Step 6: Final answer
    x = 549,983.92

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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.