Home / 863,929.80-1,294,801.20-330,739.20

Finding the Fourth Proportional to 863,929.80, 1,294,801.20 and 330,739.20

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Solution

The fourth proportional to 863,929.80, 1,294,801.20 and 330,739.20 is: 495,690.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,929.80 : 1,294,801.20 = 330,739.20 : x
  2. Step 2: Convert to fraction form
    863,929.80/1,294,801.20 = 330,739.20/x
  3. Step 3: Cross multiply
    863,929.80x = 1,294,801.20 × 330,739.20
  4. Step 4: Simplify right side
    863,929.80x = 428,241,513,047.04
  5. Step 5: Solve for x
    x = 428,241,513,047.04/863,929.80
  6. Step 6: Final answer
    x = 495,690.17

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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.