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Finding the Fourth Proportional to 509,021.62, 702,458.28 and 279,600.13

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Solution

The fourth proportional to 509,021.62, 702,458.28 and 279,600.13 is: 385,852.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,021.62 : 702,458.28 = 279,600.13 : x
  2. Step 2: Convert to fraction form
    509,021.62/702,458.28 = 279,600.13/x
  3. Step 3: Cross multiply
    509,021.62x = 702,458.28 × 279,600.13
  4. Step 4: Simplify right side
    509,021.62x = 196,407,426,407.58
  5. Step 5: Solve for x
    x = 196,407,426,407.58/509,021.62
  6. Step 6: Final answer
    x = 385,852.82

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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.