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Finding the Fourth Proportional to 507,116.15, 699,820.33 and 277,687.90

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Solution

The fourth proportional to 507,116.15, 699,820.33 and 277,687.90 is: 383,209.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,116.15 : 699,820.33 = 277,687.90 : x
  2. Step 2: Convert to fraction form
    507,116.15/699,820.33 = 277,687.90/x
  3. Step 3: Cross multiply
    507,116.15x = 699,820.33 × 277,687.90
  4. Step 4: Simplify right side
    507,116.15x = 194,331,637,815.01
  5. Step 5: Solve for x
    x = 194,331,637,815.01/507,116.15
  6. Step 6: Final answer
    x = 383,209.33

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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.