Home / 764,042.40-1,145,226.60-384,357.60

Finding the Fourth Proportional to 764,042.40, 1,145,226.60 and 384,357.60

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Solution

The fourth proportional to 764,042.40, 1,145,226.60 and 384,357.60 is: 576,115.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,042.40 : 1,145,226.60 = 384,357.60 : x
  2. Step 2: Convert to fraction form
    764,042.40/1,145,226.60 = 384,357.60/x
  3. Step 3: Cross multiply
    764,042.40x = 1,145,226.60 × 384,357.60
  4. Step 4: Simplify right side
    764,042.40x = 440,176,547,432.16
  5. Step 5: Solve for x
    x = 440,176,547,432.16/764,042.40
  6. Step 6: Final answer
    x = 576,115.34

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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.