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Finding the Fourth Proportional to 502,840.08, 693,919.31 and 276,485.58

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Solution

The fourth proportional to 502,840.08, 693,919.31 and 276,485.58 is: 381,550.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,840.08 : 693,919.31 = 276,485.58 : x
  2. Step 2: Convert to fraction form
    502,840.08/693,919.31 = 276,485.58/x
  3. Step 3: Cross multiply
    502,840.08x = 693,919.31 × 276,485.58
  4. Step 4: Simplify right side
    502,840.08x = 191,858,681,516.12
  5. Step 5: Solve for x
    x = 191,858,681,516.12/502,840.08
  6. Step 6: Final answer
    x = 381,550.10

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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.