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Finding the Fourth Proportional to 553,350.82, 763,622.24 and 311,633.33

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Solution

The fourth proportional to 553,350.82, 763,622.24 and 311,633.33 is: 430,052.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,350.82 : 763,622.24 = 311,633.33 : x
  2. Step 2: Convert to fraction form
    553,350.82/763,622.24 = 311,633.33/x
  3. Step 3: Cross multiply
    553,350.82x = 763,622.24 × 311,633.33
  4. Step 4: Simplify right side
    553,350.82x = 237,970,141,513.26
  5. Step 5: Solve for x
    x = 237,970,141,513.26/553,350.82
  6. Step 6: Final answer
    x = 430,052.93

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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.