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Finding the Fourth Proportional to 999,842.96, 1,379,783.40 and 547,134

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Solution

The fourth proportional to 999,842.96, 1,379,783.40 and 547,134 is: 755,044.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,842.96 : 1,379,783.40 = 547,134 : x
  2. Step 2: Convert to fraction form
    999,842.96/1,379,783.40 = 547,134/x
  3. Step 3: Cross multiply
    999,842.96x = 1,379,783.40 × 547,134
  4. Step 4: Simplify right side
    999,842.96x = 754,926,410,775.60
  5. Step 5: Solve for x
    x = 754,926,410,775.60/999,842.96
  6. Step 6: Final answer
    x = 755,044.98

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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.