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Finding the Fourth Proportional to 504,984, 696,892.50 and 278,644.08

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Solution

The fourth proportional to 504,984, 696,892.50 and 278,644.08 is: 384,536.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,984 : 696,892.50 = 278,644.08 : x
  2. Step 2: Convert to fraction form
    504,984/696,892.50 = 278,644.08/x
  3. Step 3: Cross multiply
    504,984x = 696,892.50 × 278,644.08
  4. Step 4: Simplify right side
    504,984x = 194,184,969,521.40
  5. Step 5: Solve for x
    x = 194,184,969,521.40/504,984
  6. Step 6: Final answer
    x = 384,536.88

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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.