Home / 863,507.20-1,294,646.40-330,822.40

Finding the Fourth Proportional to 863,507.20, 1,294,646.40 and 330,822.40

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Solution

The fourth proportional to 863,507.20, 1,294,646.40 and 330,822.40 is: 495,998.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,507.20 : 1,294,646.40 = 330,822.40 : x
  2. Step 2: Convert to fraction form
    863,507.20/1,294,646.40 = 330,822.40/x
  3. Step 3: Cross multiply
    863,507.20x = 1,294,646.40 × 330,822.40
  4. Step 4: Simplify right side
    863,507.20x = 428,298,029,199.36
  5. Step 5: Solve for x
    x = 428,298,029,199.36/863,507.20
  6. Step 6: Final answer
    x = 495,998.21

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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.