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Finding the Fourth Proportional to 551,045.60, 824,991.60 and 339,257.60

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Solution

The fourth proportional to 551,045.60, 824,991.60 and 339,257.60 is: 507,915.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,045.60 : 824,991.60 = 339,257.60 : x
  2. Step 2: Convert to fraction form
    551,045.60/824,991.60 = 339,257.60/x
  3. Step 3: Cross multiply
    551,045.60x = 824,991.60 × 339,257.60
  4. Step 4: Simplify right side
    551,045.60x = 279,884,670,236.16
  5. Step 5: Solve for x
    x = 279,884,670,236.16/551,045.60
  6. Step 6: Final answer
    x = 507,915.62

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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.