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Finding the Fourth Proportional to 669,330.65, 923,670.90 and 363,400.97

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Solution

The fourth proportional to 669,330.65, 923,670.90 and 363,400.97 is: 501,490.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,330.65 : 923,670.90 = 363,400.97 : x
  2. Step 2: Convert to fraction form
    669,330.65/923,670.90 = 363,400.97/x
  3. Step 3: Cross multiply
    669,330.65x = 923,670.90 × 363,400.97
  4. Step 4: Simplify right side
    669,330.65x = 335,662,901,020.77
  5. Step 5: Solve for x
    x = 335,662,901,020.77/669,330.65
  6. Step 6: Final answer
    x = 501,490.41

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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.