Home / 646,258.50-969,387.75-290,857.23

Finding the Fourth Proportional to 646,258.50, 969,387.75 and 290,857.23

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Solution

The fourth proportional to 646,258.50, 969,387.75 and 290,857.23 is: 436,285.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,258.50 : 969,387.75 = 290,857.23 : x
  2. Step 2: Convert to fraction form
    646,258.50/969,387.75 = 290,857.23/x
  3. Step 3: Cross multiply
    646,258.50x = 969,387.75 × 290,857.23
  4. Step 4: Simplify right side
    646,258.50x = 281,953,435,760.93
  5. Step 5: Solve for x
    x = 281,953,435,760.93/646,258.50
  6. Step 6: Final answer
    x = 436,285.85

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Double scale
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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.