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Finding the Fourth Proportional to 509,023.37, 702,460.70 and 279,601.88

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Solution

The fourth proportional to 509,023.37, 702,460.70 and 279,601.88 is: 385,855.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,023.37 : 702,460.70 = 279,601.88 : x
  2. Step 2: Convert to fraction form
    509,023.37/702,460.70 = 279,601.88/x
  3. Step 3: Cross multiply
    509,023.37x = 702,460.70 × 279,601.88
  4. Step 4: Simplify right side
    509,023.37x = 196,409,330,948.11
  5. Step 5: Solve for x
    x = 196,409,330,948.11/509,023.37
  6. Step 6: Final answer
    x = 385,855.23

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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.