Home / 821,499.90-1,229,252.40-484,701.90

Finding the Fourth Proportional to 821,499.90, 1,229,252.40 and 484,701.90

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Solution

The fourth proportional to 821,499.90, 1,229,252.40 and 484,701.90 is: 725,284.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,499.90 : 1,229,252.40 = 484,701.90 : x
  2. Step 2: Convert to fraction form
    821,499.90/1,229,252.40 = 484,701.90/x
  3. Step 3: Cross multiply
    821,499.90x = 1,229,252.40 × 484,701.90
  4. Step 4: Simplify right side
    821,499.90x = 595,820,973,859.56
  5. Step 5: Solve for x
    x = 595,820,973,859.56/821,499.90
  6. Step 6: Final answer
    x = 725,284.29

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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.