Home / 725,492.80-1,087,807.20-445,211.20

Finding the Fourth Proportional to 725,492.80, 1,087,807.20 and 445,211.20

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Solution

The fourth proportional to 725,492.80, 1,087,807.20 and 445,211.20 is: 667,551.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,492.80 : 1,087,807.20 = 445,211.20 : x
  2. Step 2: Convert to fraction form
    725,492.80/1,087,807.20 = 445,211.20/x
  3. Step 3: Cross multiply
    725,492.80x = 1,087,807.20 × 445,211.20
  4. Step 4: Simplify right side
    725,492.80x = 484,303,948,880.64
  5. Step 5: Solve for x
    x = 484,303,948,880.64/725,492.80
  6. Step 6: Final answer
    x = 667,551.70

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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.