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Finding the Fourth Proportional to 509,720.54, 703,521.37 and 323,331.44

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Solution

The fourth proportional to 509,720.54, 703,521.37 and 323,331.44 is: 446,265.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,720.54 : 703,521.37 = 323,331.44 : x
  2. Step 2: Convert to fraction form
    509,720.54/703,521.37 = 323,331.44/x
  3. Step 3: Cross multiply
    509,720.54x = 703,521.37 × 323,331.44
  4. Step 4: Simplify right side
    509,720.54x = 227,470,578,583.35
  5. Step 5: Solve for x
    x = 227,470,578,583.35/509,720.54
  6. Step 6: Final answer
    x = 446,265.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.