Home / 842,481.60-1,263,722.40-243,462.30

Finding the Fourth Proportional to 842,481.60, 1,263,722.40 and 243,462.30

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Solution

The fourth proportional to 842,481.60, 1,263,722.40 and 243,462.30 is: 365,193.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,481.60 : 1,263,722.40 = 243,462.30 : x
  2. Step 2: Convert to fraction form
    842,481.60/1,263,722.40 = 243,462.30/x
  3. Step 3: Cross multiply
    842,481.60x = 1,263,722.40 × 243,462.30
  4. Step 4: Simplify right side
    842,481.60x = 307,668,762,065.52
  5. Step 5: Solve for x
    x = 307,668,762,065.52/842,481.60
  6. Step 6: Final answer
    x = 365,193.45

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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.