Home / 811,946.80-1,217,920.20-250,980.40

Finding the Fourth Proportional to 811,946.80, 1,217,920.20 and 250,980.40

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Solution

The fourth proportional to 811,946.80, 1,217,920.20 and 250,980.40 is: 376,470.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,946.80 : 1,217,920.20 = 250,980.40 : x
  2. Step 2: Convert to fraction form
    811,946.80/1,217,920.20 = 250,980.40/x
  3. Step 3: Cross multiply
    811,946.80x = 1,217,920.20 × 250,980.40
  4. Step 4: Simplify right side
    811,946.80x = 305,674,098,964.08
  5. Step 5: Solve for x
    x = 305,674,098,964.08/811,946.80
  6. Step 6: Final answer
    x = 376,470.60

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Similar ratio
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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.