Home / 1,330,808.10-1,996,212.15-384,209.70

Finding the Fourth Proportional to 1,330,808.10, 1,996,212.15 and 384,209.70

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Solution

The fourth proportional to 1,330,808.10, 1,996,212.15 and 384,209.70 is: 576,314.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,808.10 : 1,996,212.15 = 384,209.70 : x
  2. Step 2: Convert to fraction form
    1,330,808.10/1,996,212.15 = 384,209.70/x
  3. Step 3: Cross multiply
    1,330,808.10x = 1,996,212.15 × 384,209.70
  4. Step 4: Simplify right side
    1,330,808.10x = 766,964,071,287.86
  5. Step 5: Solve for x
    x = 766,964,071,287.86/1,330,808.10
  6. Step 6: Final answer
    x = 576,314.55

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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.