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Finding the Fourth Proportional to 820,232.80, 1,230,349.20 and 737,564.20

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Solution

The fourth proportional to 820,232.80, 1,230,349.20 and 737,564.20 is: 1,106,346.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,232.80 : 1,230,349.20 = 737,564.20 : x
  2. Step 2: Convert to fraction form
    820,232.80/1,230,349.20 = 737,564.20/x
  3. Step 3: Cross multiply
    820,232.80x = 1,230,349.20 × 737,564.20
  4. Step 4: Simplify right side
    820,232.80x = 907,461,523,418.64
  5. Step 5: Solve for x
    x = 907,461,523,418.64/820,232.80
  6. Step 6: Final answer
    x = 1,106,346.30

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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.