Home / 1,100,425.68-1,518,224.42-664,680.20

Finding the Fourth Proportional to 1,100,425.68, 1,518,224.42 and 664,680.20

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Solution

The fourth proportional to 1,100,425.68, 1,518,224.42 and 664,680.20 is: 917,039.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,425.68 : 1,518,224.42 = 664,680.20 : x
  2. Step 2: Convert to fraction form
    1,100,425.68/1,518,224.42 = 664,680.20/x
  3. Step 3: Cross multiply
    1,100,425.68x = 1,518,224.42 × 664,680.20
  4. Step 4: Simplify right side
    1,100,425.68x = 1,009,133,700,215.96
  5. Step 5: Solve for x
    x = 1,009,133,700,215.96/1,100,425.68
  6. Step 6: Final answer
    x = 917,039.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.