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Finding the Fourth Proportional to 556,956.56, 768,999.52 and 342,384.32

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Solution

The fourth proportional to 556,956.56, 768,999.52 and 342,384.32 is: 472,735.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,956.56 : 768,999.52 = 342,384.32 : x
  2. Step 2: Convert to fraction form
    556,956.56/768,999.52 = 342,384.32/x
  3. Step 3: Cross multiply
    556,956.56x = 768,999.52 × 342,384.32
  4. Step 4: Simplify right side
    556,956.56x = 263,293,377,735.53
  5. Step 5: Solve for x
    x = 263,293,377,735.53/556,956.56
  6. Step 6: Final answer
    x = 472,735.93

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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.