Home / 764,145.60-1,146,218.40-494,707.20

Finding the Fourth Proportional to 764,145.60, 1,146,218.40 and 494,707.20

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Solution

The fourth proportional to 764,145.60, 1,146,218.40 and 494,707.20 is: 742,060.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,145.60 : 1,146,218.40 = 494,707.20 : x
  2. Step 2: Convert to fraction form
    764,145.60/1,146,218.40 = 494,707.20/x
  3. Step 3: Cross multiply
    764,145.60x = 1,146,218.40 × 494,707.20
  4. Step 4: Simplify right side
    764,145.60x = 567,042,495,252.48
  5. Step 5: Solve for x
    x = 567,042,495,252.48/764,145.60
  6. Step 6: Final answer
    x = 742,060.80

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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.