Home / 686,924.40-1,030,386.60-332,630.40

Finding the Fourth Proportional to 686,924.40, 1,030,386.60 and 332,630.40

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Solution

The fourth proportional to 686,924.40, 1,030,386.60 and 332,630.40 is: 498,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,924.40 : 1,030,386.60 = 332,630.40 : x
  2. Step 2: Convert to fraction form
    686,924.40/1,030,386.60 = 332,630.40/x
  3. Step 3: Cross multiply
    686,924.40x = 1,030,386.60 × 332,630.40
  4. Step 4: Simplify right side
    686,924.40x = 342,737,906,912.64
  5. Step 5: Solve for x
    x = 342,737,906,912.64/686,924.40
  6. Step 6: Final answer
    x = 498,945.60

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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.