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Finding the Fourth Proportional to 496,642.56, 685,353.60 and 270,283.20

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Solution

The fourth proportional to 496,642.56, 685,353.60 and 270,283.20 is: 372,983.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,642.56 : 685,353.60 = 270,283.20 : x
  2. Step 2: Convert to fraction form
    496,642.56/685,353.60 = 270,283.20/x
  3. Step 3: Cross multiply
    496,642.56x = 685,353.60 × 270,283.20
  4. Step 4: Simplify right side
    496,642.56x = 185,239,564,139.52
  5. Step 5: Solve for x
    x = 185,239,564,139.52/496,642.56
  6. Step 6: Final answer
    x = 372,983.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.