Home / 811,336.80-1,217,120.40-250,312.80

Finding the Fourth Proportional to 811,336.80, 1,217,120.40 and 250,312.80

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Solution

The fourth proportional to 811,336.80, 1,217,120.40 and 250,312.80 is: 375,504.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,336.80 : 1,217,120.40 = 250,312.80 : x
  2. Step 2: Convert to fraction form
    811,336.80/1,217,120.40 = 250,312.80/x
  3. Step 3: Cross multiply
    811,336.80x = 1,217,120.40 × 250,312.80
  4. Step 4: Simplify right side
    811,336.80x = 304,660,815,261.12
  5. Step 5: Solve for x
    x = 304,660,815,261.12/811,336.80
  6. Step 6: Final answer
    x = 375,504.74

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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.