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Finding the Fourth Proportional to 507,224.54, 699,990.96 and 280,870.04

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Solution

The fourth proportional to 507,224.54, 699,990.96 and 280,870.04 is: 387,612.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,224.54 : 699,990.96 = 280,870.04 : x
  2. Step 2: Convert to fraction form
    507,224.54/699,990.96 = 280,870.04/x
  3. Step 3: Cross multiply
    507,224.54x = 699,990.96 × 280,870.04
  4. Step 4: Simplify right side
    507,224.54x = 196,606,488,934.84
  5. Step 5: Solve for x
    x = 196,606,488,934.84/507,224.54
  6. Step 6: Final answer
    x = 387,612.34

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1.5x scale

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.