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Finding the Fourth Proportional to 669,312.25, 923,645.80 and 363,382.61

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Solution

The fourth proportional to 669,312.25, 923,645.80 and 363,382.61 is: 501,465.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,312.25 : 923,645.80 = 363,382.61 : x
  2. Step 2: Convert to fraction form
    669,312.25/923,645.80 = 363,382.61/x
  3. Step 3: Cross multiply
    669,312.25x = 923,645.80 × 363,382.61
  4. Step 4: Simplify right side
    669,312.25x = 335,636,817,355.54
  5. Step 5: Solve for x
    x = 335,636,817,355.54/669,312.25
  6. Step 6: Final answer
    x = 501,465.23

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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.