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Finding the Fourth Proportional to 737,384.12, 1,105,808.32 and 257,477.12

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Solution

The fourth proportional to 737,384.12, 1,105,808.32 and 257,477.12 is: 386,122.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,384.12 : 1,105,808.32 = 257,477.12 : x
  2. Step 2: Convert to fraction form
    737,384.12/1,105,808.32 = 257,477.12/x
  3. Step 3: Cross multiply
    737,384.12x = 1,105,808.32 × 257,477.12
  4. Step 4: Simplify right side
    737,384.12x = 284,720,341,505.64
  5. Step 5: Solve for x
    x = 284,720,341,505.64/737,384.12
  6. Step 6: Final answer
    x = 386,122.15

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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.