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Finding the Fourth Proportional to 863,134.40, 1,294,798.80 and 264,090.80

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Solution

The fourth proportional to 863,134.40, 1,294,798.80 and 264,090.80 is: 396,165.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,134.40 : 1,294,798.80 = 264,090.80 : x
  2. Step 2: Convert to fraction form
    863,134.40/1,294,798.80 = 264,090.80/x
  3. Step 3: Cross multiply
    863,134.40x = 1,294,798.80 × 264,090.80
  4. Step 4: Simplify right side
    863,134.40x = 341,944,450,931.04
  5. Step 5: Solve for x
    x = 341,944,450,931.04/863,134.40
  6. Step 6: Final answer
    x = 396,165.94

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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.