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Finding the Fourth Proportional to 613,332.70, 919,233.60 and 313,932.40

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Solution

The fourth proportional to 613,332.70, 919,233.60 and 313,932.40 is: 470,506.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,332.70 : 919,233.60 = 313,932.40 : x
  2. Step 2: Convert to fraction form
    613,332.70/919,233.60 = 313,932.40/x
  3. Step 3: Cross multiply
    613,332.70x = 919,233.60 × 313,932.40
  4. Step 4: Simplify right side
    613,332.70x = 288,577,210,208.64
  5. Step 5: Solve for x
    x = 288,577,210,208.64/613,332.70
  6. Step 6: Final answer
    x = 470,506.81

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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.