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Finding the Fourth Proportional to 669,079.51, 923,327.37 and 363,155.89

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Solution

The fourth proportional to 669,079.51, 923,327.37 and 363,155.89 is: 501,153.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,079.51 : 923,327.37 = 363,155.89 : x
  2. Step 2: Convert to fraction form
    669,079.51/923,327.37 = 363,155.89/x
  3. Step 3: Cross multiply
    669,079.51x = 923,327.37 × 363,155.89
  4. Step 4: Simplify right side
    669,079.51x = 335,311,772,813.71
  5. Step 5: Solve for x
    x = 335,311,772,813.71/669,079.51
  6. Step 6: Final answer
    x = 501,153.85

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Double scale
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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.