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Finding the Fourth Proportional to 862,651.08, 1,293,100 and 357,486.90

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Solution

The fourth proportional to 862,651.08, 1,293,100 and 357,486.90 is: 535,867.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,651.08 : 1,293,100 = 357,486.90 : x
  2. Step 2: Convert to fraction form
    862,651.08/1,293,100 = 357,486.90/x
  3. Step 3: Cross multiply
    862,651.08x = 1,293,100 × 357,486.90
  4. Step 4: Simplify right side
    862,651.08x = 462,266,310,390
  5. Step 5: Solve for x
    x = 462,266,310,390/862,651.08
  6. Step 6: Final answer
    x = 535,867.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.