Home / 826,484.69-1,239,245.34-320,454.50

Finding the Fourth Proportional to 826,484.69, 1,239,245.34 and 320,454.50

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Solution

The fourth proportional to 826,484.69, 1,239,245.34 and 320,454.50 is: 480,494.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,484.69 : 1,239,245.34 = 320,454.50 : x
  2. Step 2: Convert to fraction form
    826,484.69/1,239,245.34 = 320,454.50/x
  3. Step 3: Cross multiply
    826,484.69x = 1,239,245.34 × 320,454.50
  4. Step 4: Simplify right side
    826,484.69x = 397,121,745,807.03
  5. Step 5: Solve for x
    x = 397,121,745,807.03/826,484.69
  6. Step 6: Final answer
    x = 480,494.98

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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.