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Finding the Fourth Proportional to 369,804.78, 556,027.61 and 340,575.53

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Solution

The fourth proportional to 369,804.78, 556,027.61 and 340,575.53 is: 512,079.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,804.78 : 556,027.61 = 340,575.53 : x
  2. Step 2: Convert to fraction form
    369,804.78/556,027.61 = 340,575.53/x
  3. Step 3: Cross multiply
    369,804.78x = 556,027.61 × 340,575.53
  4. Step 4: Simplify right side
    369,804.78x = 189,369,393,487.37
  5. Step 5: Solve for x
    x = 189,369,393,487.37/369,804.78
  6. Step 6: Final answer
    x = 512,079.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.