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Finding the Fourth Proportional to 547,118.40, 820,562.40 and 231,585.60

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Solution

The fourth proportional to 547,118.40, 820,562.40 and 231,585.60 is: 347,329.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,118.40 : 820,562.40 = 231,585.60 : x
  2. Step 2: Convert to fraction form
    547,118.40/820,562.40 = 231,585.60/x
  3. Step 3: Cross multiply
    547,118.40x = 820,562.40 × 231,585.60
  4. Step 4: Simplify right side
    547,118.40x = 190,030,435,741.44
  5. Step 5: Solve for x
    x = 190,030,435,741.44/547,118.40
  6. Step 6: Final answer
    x = 347,329.64

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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.