Home / 443,977.20-665,965.80-433,479.60

Finding the Fourth Proportional to 443,977.20, 665,965.80 and 433,479.60

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Solution

The fourth proportional to 443,977.20, 665,965.80 and 433,479.60 is: 650,219.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,977.20 : 665,965.80 = 433,479.60 : x
  2. Step 2: Convert to fraction form
    443,977.20/665,965.80 = 433,479.60/x
  3. Step 3: Cross multiply
    443,977.20x = 665,965.80 × 433,479.60
  4. Step 4: Simplify right side
    443,977.20x = 288,682,588,597.68
  5. Step 5: Solve for x
    x = 288,682,588,597.68/443,977.20
  6. Step 6: Final answer
    x = 650,219.40

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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.