Home / 711,138.52-1,066,708.83-290,414.41

Finding the Fourth Proportional to 711,138.52, 1,066,708.83 and 290,414.41

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Solution

The fourth proportional to 711,138.52, 1,066,708.83 and 290,414.41 is: 435,622.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,138.52 : 1,066,708.83 = 290,414.41 : x
  2. Step 2: Convert to fraction form
    711,138.52/1,066,708.83 = 290,414.41/x
  3. Step 3: Cross multiply
    711,138.52x = 1,066,708.83 × 290,414.41
  4. Step 4: Simplify right side
    711,138.52x = 309,787,615,506.24
  5. Step 5: Solve for x
    x = 309,787,615,506.24/711,138.52
  6. Step 6: Final answer
    x = 435,622.04

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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.