Home / 862,763.60-1,294,145.40-330,010.40

Finding the Fourth Proportional to 862,763.60, 1,294,145.40 and 330,010.40

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Solution

The fourth proportional to 862,763.60, 1,294,145.40 and 330,010.40 is: 495,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,763.60 : 1,294,145.40 = 330,010.40 : x
  2. Step 2: Convert to fraction form
    862,763.60/1,294,145.40 = 330,010.40/x
  3. Step 3: Cross multiply
    862,763.60x = 1,294,145.40 × 330,010.40
  4. Step 4: Simplify right side
    862,763.60x = 427,081,441,112.16
  5. Step 5: Solve for x
    x = 427,081,441,112.16/862,763.60
  6. Step 6: Final answer
    x = 495,015.60

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1.5x scale

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.