Home / 764,165.40-1,146,177.81-258,668.60

Finding the Fourth Proportional to 764,165.40, 1,146,177.81 and 258,668.60

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Solution

The fourth proportional to 764,165.40, 1,146,177.81 and 258,668.60 is: 387,979.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,165.40 : 1,146,177.81 = 258,668.60 : x
  2. Step 2: Convert to fraction form
    764,165.40/1,146,177.81 = 258,668.60/x
  3. Step 3: Cross multiply
    764,165.40x = 1,146,177.81 × 258,668.60
  4. Step 4: Simplify right side
    764,165.40x = 296,480,205,084.41
  5. Step 5: Solve for x
    x = 296,480,205,084.41/764,165.40
  6. Step 6: Final answer
    x = 387,979.10

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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.