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Finding the Fourth Proportional to 646,801.80, 969,857.10 and 272,401.80

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Solution

The fourth proportional to 646,801.80, 969,857.10 and 272,401.80 is: 408,457.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,801.80 : 969,857.10 = 272,401.80 : x
  2. Step 2: Convert to fraction form
    646,801.80/969,857.10 = 272,401.80/x
  3. Step 3: Cross multiply
    646,801.80x = 969,857.10 × 272,401.80
  4. Step 4: Simplify right side
    646,801.80x = 264,190,819,782.78
  5. Step 5: Solve for x
    x = 264,190,819,782.78/646,801.80
  6. Step 6: Final answer
    x = 408,457.15

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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.