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Finding the Fourth Proportional to 842,355, 1,264,122.96 and 486,879.96

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Solution

The fourth proportional to 842,355, 1,264,122.96 and 486,879.96 is: 730,661.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,355 : 1,264,122.96 = 486,879.96 : x
  2. Step 2: Convert to fraction form
    842,355/1,264,122.96 = 486,879.96/x
  3. Step 3: Cross multiply
    842,355x = 1,264,122.96 × 486,879.96
  4. Step 4: Simplify right side
    842,355x = 615,476,136,199.88
  5. Step 5: Solve for x
    x = 615,476,136,199.88/842,355
  6. Step 6: Final answer
    x = 730,661.23

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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.