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Finding the Fourth Proportional to 344,543.60, 515,940.60 and 328,797.20

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Solution

The fourth proportional to 344,543.60, 515,940.60 and 328,797.20 is: 492,360.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,543.60 : 515,940.60 = 328,797.20 : x
  2. Step 2: Convert to fraction form
    344,543.60/515,940.60 = 328,797.20/x
  3. Step 3: Cross multiply
    344,543.60x = 515,940.60 × 328,797.20
  4. Step 4: Simplify right side
    344,543.60x = 169,639,824,646.32
  5. Step 5: Solve for x
    x = 169,639,824,646.32/344,543.60
  6. Step 6: Final answer
    x = 492,360.98

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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.