Home / 842,079.60-1,263,119.40-243,060.30

Finding the Fourth Proportional to 842,079.60, 1,263,119.40 and 243,060.30

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Solution

The fourth proportional to 842,079.60, 1,263,119.40 and 243,060.30 is: 364,590.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,079.60 : 1,263,119.40 = 243,060.30 : x
  2. Step 2: Convert to fraction form
    842,079.60/1,263,119.40 = 243,060.30/x
  3. Step 3: Cross multiply
    842,079.60x = 1,263,119.40 × 243,060.30
  4. Step 4: Simplify right side
    842,079.60x = 307,014,180,299.82
  5. Step 5: Solve for x
    x = 307,014,180,299.82/842,079.60
  6. Step 6: Final answer
    x = 364,590.45

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Double scale
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Similar ratio
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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.