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Finding the Fourth Proportional to 551,289.60, 827,128.80 and 531,849.60

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Solution

The fourth proportional to 551,289.60, 827,128.80 and 531,849.60 is: 797,961.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,289.60 : 827,128.80 = 531,849.60 : x
  2. Step 2: Convert to fraction form
    551,289.60/827,128.80 = 531,849.60/x
  3. Step 3: Cross multiply
    551,289.60x = 827,128.80 × 531,849.60
  4. Step 4: Simplify right side
    551,289.60x = 439,908,121,428.48
  5. Step 5: Solve for x
    x = 439,908,121,428.48/551,289.60
  6. Step 6: Final answer
    x = 797,961.94

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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.