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Finding the Fourth Proportional to 423,661.05, 637,799.74 and 365,807.61

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Solution

The fourth proportional to 423,661.05, 637,799.74 and 365,807.61 is: 550,704.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,661.05 : 637,799.74 = 365,807.61 : x
  2. Step 2: Convert to fraction form
    423,661.05/637,799.74 = 365,807.61/x
  3. Step 3: Cross multiply
    423,661.05x = 637,799.74 × 365,807.61
  4. Step 4: Simplify right side
    423,661.05x = 233,311,997,633.50
  5. Step 5: Solve for x
    x = 233,311,997,633.50/423,661.05
  6. Step 6: Final answer
    x = 550,704.38

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.