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Finding the Fourth Proportional to 531,435.46, 797,613.72 and 278,894.38

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Solution

The fourth proportional to 531,435.46, 797,613.72 and 278,894.38 is: 418,583.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,435.46 : 797,613.72 = 278,894.38 : x
  2. Step 2: Convert to fraction form
    531,435.46/797,613.72 = 278,894.38/x
  3. Step 3: Cross multiply
    531,435.46x = 797,613.72 × 278,894.38
  4. Step 4: Simplify right side
    531,435.46x = 222,449,983,918.89
  5. Step 5: Solve for x
    x = 222,449,983,918.89/531,435.46
  6. Step 6: Final answer
    x = 418,583.25

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1.5x scale

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.