Home / 864,847.80-1,296,836.20-288,266.88

Finding the Fourth Proportional to 864,847.80, 1,296,836.20 and 288,266.88

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Solution

The fourth proportional to 864,847.80, 1,296,836.20 and 288,266.88 is: 432,255.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,847.80 : 1,296,836.20 = 288,266.88 : x
  2. Step 2: Convert to fraction form
    864,847.80/1,296,836.20 = 288,266.88/x
  3. Step 3: Cross multiply
    864,847.80x = 1,296,836.20 × 288,266.88
  4. Step 4: Simplify right side
    864,847.80x = 373,834,925,245.06
  5. Step 5: Solve for x
    x = 373,834,925,245.06/864,847.80
  6. Step 6: Final answer
    x = 432,255.16

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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.