Home / 764,983.36-1,147,630.56-266,386.24

Finding the Fourth Proportional to 764,983.36, 1,147,630.56 and 266,386.24

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Solution

The fourth proportional to 764,983.36, 1,147,630.56 and 266,386.24 is: 399,633.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,983.36 : 1,147,630.56 = 266,386.24 : x
  2. Step 2: Convert to fraction form
    764,983.36/1,147,630.56 = 266,386.24/x
  3. Step 3: Cross multiply
    764,983.36x = 1,147,630.56 × 266,386.24
  4. Step 4: Simplify right side
    764,983.36x = 305,712,989,787.49
  5. Step 5: Solve for x
    x = 305,712,989,787.49/764,983.36
  6. Step 6: Final answer
    x = 399,633.52

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Double scale
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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.