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Finding the Fourth Proportional to 509,496.25, 701,889.63 and 356,247.70

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Solution

The fourth proportional to 509,496.25, 701,889.63 and 356,247.70 is: 490,772.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,496.25 : 701,889.63 = 356,247.70 : x
  2. Step 2: Convert to fraction form
    509,496.25/701,889.63 = 356,247.70/x
  3. Step 3: Cross multiply
    509,496.25x = 701,889.63 × 356,247.70
  4. Step 4: Simplify right side
    509,496.25x = 250,046,566,341.35
  5. Step 5: Solve for x
    x = 250,046,566,341.35/509,496.25
  6. Step 6: Final answer
    x = 490,772.14

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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.