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Finding the Fourth Proportional to 504,973.13, 696,877.52 and 278,633.21

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Solution

The fourth proportional to 504,973.13, 696,877.52 and 278,633.21 is: 384,521.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,973.13 : 696,877.52 = 278,633.21 : x
  2. Step 2: Convert to fraction form
    504,973.13/696,877.52 = 278,633.21/x
  3. Step 3: Cross multiply
    504,973.13x = 696,877.52 × 278,633.21
  4. Step 4: Simplify right side
    504,973.13x = 194,173,215,496.89
  5. Step 5: Solve for x
    x = 194,173,215,496.89/504,973.13
  6. Step 6: Final answer
    x = 384,521.88

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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.