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Finding the Fourth Proportional to 430,844.40, 646,266.60 and 341,614.80

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Solution

The fourth proportional to 430,844.40, 646,266.60 and 341,614.80 is: 512,422.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,844.40 : 646,266.60 = 341,614.80 : x
  2. Step 2: Convert to fraction form
    430,844.40/646,266.60 = 341,614.80/x
  3. Step 3: Cross multiply
    430,844.40x = 646,266.60 × 341,614.80
  4. Step 4: Simplify right side
    430,844.40x = 220,774,235,305.68
  5. Step 5: Solve for x
    x = 220,774,235,305.68/430,844.40
  6. Step 6: Final answer
    x = 512,422.20

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Similar ratio
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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.