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Finding the Fourth Proportional to 908,964, 1,363,446.72 and 347,999.04

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Solution

The fourth proportional to 908,964, 1,363,446.72 and 347,999.04 is: 521,998.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,964 : 1,363,446.72 = 347,999.04 : x
  2. Step 2: Convert to fraction form
    908,964/1,363,446.72 = 347,999.04/x
  3. Step 3: Cross multiply
    908,964x = 1,363,446.72 × 347,999.04
  4. Step 4: Simplify right side
    908,964x = 474,478,149,651.15
  5. Step 5: Solve for x
    x = 474,478,149,651.15/908,964
  6. Step 6: Final answer
    x = 521,998.84

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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.