Home / 764,036.40-1,145,217.60-384,351.60

Finding the Fourth Proportional to 764,036.40, 1,145,217.60 and 384,351.60

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Solution

The fourth proportional to 764,036.40, 1,145,217.60 and 384,351.60 is: 576,106.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,036.40 : 1,145,217.60 = 384,351.60 : x
  2. Step 2: Convert to fraction form
    764,036.40/1,145,217.60 = 384,351.60/x
  3. Step 3: Cross multiply
    764,036.40x = 1,145,217.60 × 384,351.60
  4. Step 4: Simplify right side
    764,036.40x = 440,166,216,908.16
  5. Step 5: Solve for x
    x = 440,166,216,908.16/764,036.40
  6. Step 6: Final answer
    x = 576,106.34

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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.