Home / 680,256.40-1,019,218.20-443,477.20

Finding the Fourth Proportional to 680,256.40, 1,019,218.20 and 443,477.20

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Solution

The fourth proportional to 680,256.40, 1,019,218.20 and 443,477.20 is: 664,455.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,256.40 : 1,019,218.20 = 443,477.20 : x
  2. Step 2: Convert to fraction form
    680,256.40/1,019,218.20 = 443,477.20/x
  3. Step 3: Cross multiply
    680,256.40x = 1,019,218.20 × 443,477.20
  4. Step 4: Simplify right side
    680,256.40x = 452,000,033,525.04
  5. Step 5: Solve for x
    x = 452,000,033,525.04/680,256.40
  6. Step 6: Final answer
    x = 664,455.39

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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.