Home / 961,516.40-1,442,404.20-330,623.60

Finding the Fourth Proportional to 961,516.40, 1,442,404.20 and 330,623.60

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Solution

The fourth proportional to 961,516.40, 1,442,404.20 and 330,623.60 is: 495,979.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,516.40 : 1,442,404.20 = 330,623.60 : x
  2. Step 2: Convert to fraction form
    961,516.40/1,442,404.20 = 330,623.60/x
  3. Step 3: Cross multiply
    961,516.40x = 1,442,404.20 × 330,623.60
  4. Step 4: Simplify right side
    961,516.40x = 476,892,869,259.12
  5. Step 5: Solve for x
    x = 476,892,869,259.12/961,516.40
  6. Step 6: Final answer
    x = 495,979.96

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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.