Home / 1,120,266.65-1,680,397.41-480,155.33

Finding the Fourth Proportional to 1,120,266.65, 1,680,397.41 and 480,155.33

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Solution

The fourth proportional to 1,120,266.65, 1,680,397.41 and 480,155.33 is: 720,231.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,266.65 : 1,680,397.41 = 480,155.33 : x
  2. Step 2: Convert to fraction form
    1,120,266.65/1,680,397.41 = 480,155.33/x
  3. Step 3: Cross multiply
    1,120,266.65x = 1,680,397.41 × 480,155.33
  4. Step 4: Simplify right side
    1,120,266.65x = 806,851,764,527.71
  5. Step 5: Solve for x
    x = 806,851,764,527.71/1,120,266.65
  6. Step 6: Final answer
    x = 720,231.89

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Double scale
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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.