Home / 742,944.72-1,114,437.06-210,410.76

Finding the Fourth Proportional to 742,944.72, 1,114,437.06 and 210,410.76

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Solution

The fourth proportional to 742,944.72, 1,114,437.06 and 210,410.76 is: 315,621.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,944.72 : 1,114,437.06 = 210,410.76 : x
  2. Step 2: Convert to fraction form
    742,944.72/1,114,437.06 = 210,410.76/x
  3. Step 3: Cross multiply
    742,944.72x = 1,114,437.06 × 210,410.76
  4. Step 4: Simplify right side
    742,944.72x = 234,489,548,766.77
  5. Step 5: Solve for x
    x = 234,489,548,766.77/742,944.72
  6. Step 6: Final answer
    x = 315,621.80

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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.