Home / 724,783.28-1,086,695.16-345,762.56

Finding the Fourth Proportional to 724,783.28, 1,086,695.16 and 345,762.56

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Solution

The fourth proportional to 724,783.28, 1,086,695.16 and 345,762.56 is: 518,414.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,783.28 : 1,086,695.16 = 345,762.56 : x
  2. Step 2: Convert to fraction form
    724,783.28/1,086,695.16 = 345,762.56/x
  3. Step 3: Cross multiply
    724,783.28x = 1,086,695.16 × 345,762.56
  4. Step 4: Simplify right side
    724,783.28x = 375,738,500,461.21
  5. Step 5: Solve for x
    x = 375,738,500,461.21/724,783.28
  6. Step 6: Final answer
    x = 518,414.97

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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.