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Finding the Fourth Proportional to 646,886.20, 970,329.30 and 617,855.80

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Solution

The fourth proportional to 646,886.20, 970,329.30 and 617,855.80 is: 926,783.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,886.20 : 970,329.30 = 617,855.80 : x
  2. Step 2: Convert to fraction form
    646,886.20/970,329.30 = 617,855.80/x
  3. Step 3: Cross multiply
    646,886.20x = 970,329.30 × 617,855.80
  4. Step 4: Simplify right side
    646,886.20x = 599,523,585,914.94
  5. Step 5: Solve for x
    x = 599,523,585,914.94/646,886.20
  6. Step 6: Final answer
    x = 926,783.70

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Similar ratio
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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.