Home / 725,809.20-1,087,401.60-444,998.40

Finding the Fourth Proportional to 725,809.20, 1,087,401.60 and 444,998.40

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Solution

The fourth proportional to 725,809.20, 1,087,401.60 and 444,998.40 is: 666,693.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,809.20 : 1,087,401.60 = 444,998.40 : x
  2. Step 2: Convert to fraction form
    725,809.20/1,087,401.60 = 444,998.40/x
  3. Step 3: Cross multiply
    725,809.20x = 1,087,401.60 × 444,998.40
  4. Step 4: Simplify right side
    725,809.20x = 483,891,972,157.44
  5. Step 5: Solve for x
    x = 483,891,972,157.44/725,809.20
  6. Step 6: Final answer
    x = 666,693.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.