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Finding the Fourth Proportional to 509,020.62, 702,456.90 and 279,599.13

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Solution

The fourth proportional to 509,020.62, 702,456.90 and 279,599.13 is: 385,851.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,020.62 : 702,456.90 = 279,599.13 : x
  2. Step 2: Convert to fraction form
    509,020.62/702,456.90 = 279,599.13/x
  3. Step 3: Cross multiply
    509,020.62x = 702,456.90 × 279,599.13
  4. Step 4: Simplify right side
    509,020.62x = 196,406,338,102.50
  5. Step 5: Solve for x
    x = 196,406,338,102.50/509,020.62
  6. Step 6: Final answer
    x = 385,851.44

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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.