Home / 823,323.70-1,234,985.55-324,622.90

Finding the Fourth Proportional to 823,323.70, 1,234,985.55 and 324,622.90

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Solution

The fourth proportional to 823,323.70, 1,234,985.55 and 324,622.90 is: 486,934.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,323.70 : 1,234,985.55 = 324,622.90 : x
  2. Step 2: Convert to fraction form
    823,323.70/1,234,985.55 = 324,622.90/x
  3. Step 3: Cross multiply
    823,323.70x = 1,234,985.55 × 324,622.90
  4. Step 4: Simplify right side
    823,323.70x = 400,904,590,699.10
  5. Step 5: Solve for x
    x = 400,904,590,699.10/823,323.70
  6. Step 6: Final answer
    x = 486,934.35

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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.