Home / 645,881.23-968,920.26-330,231.52

Finding the Fourth Proportional to 645,881.23, 968,920.26 and 330,231.52

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Solution

The fourth proportional to 645,881.23, 968,920.26 and 330,231.52 is: 495,397.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,881.23 : 968,920.26 = 330,231.52 : x
  2. Step 2: Convert to fraction form
    645,881.23/968,920.26 = 330,231.52/x
  3. Step 3: Cross multiply
    645,881.23x = 968,920.26 × 330,231.52
  4. Step 4: Simplify right side
    645,881.23x = 319,968,010,218.60
  5. Step 5: Solve for x
    x = 319,968,010,218.60/645,881.23
  6. Step 6: Final answer
    x = 495,397.60

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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.