Home / 764,672.80-1,147,009.20-578,048.80

Finding the Fourth Proportional to 764,672.80, 1,147,009.20 and 578,048.80

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Solution

The fourth proportional to 764,672.80, 1,147,009.20 and 578,048.80 is: 867,073.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,672.80 : 1,147,009.20 = 578,048.80 : x
  2. Step 2: Convert to fraction form
    764,672.80/1,147,009.20 = 578,048.80/x
  3. Step 3: Cross multiply
    764,672.80x = 1,147,009.20 × 578,048.80
  4. Step 4: Simplify right side
    764,672.80x = 663,027,291,648.96
  5. Step 5: Solve for x
    x = 663,027,291,648.96/764,672.80
  6. Step 6: Final answer
    x = 867,073.20

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Double scale
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Similar ratio
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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.