Home / 764,167.40-1,146,180.81-258,670.60

Finding the Fourth Proportional to 764,167.40, 1,146,180.81 and 258,670.60

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Solution

The fourth proportional to 764,167.40, 1,146,180.81 and 258,670.60 is: 387,982.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,167.40 : 1,146,180.81 = 258,670.60 : x
  2. Step 2: Convert to fraction form
    764,167.40/1,146,180.81 = 258,670.60/x
  3. Step 3: Cross multiply
    764,167.40x = 1,146,180.81 × 258,670.60
  4. Step 4: Simplify right side
    764,167.40x = 296,483,272,100.28
  5. Step 5: Solve for x
    x = 296,483,272,100.28/764,167.40
  6. Step 6: Final answer
    x = 387,982.10

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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.