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Finding the Fourth Proportional to 799,878, 1,200,259.86 and 479,241.93

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Solution

The fourth proportional to 799,878, 1,200,259.86 and 479,241.93 is: 719,128.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    799,878 : 1,200,259.86 = 479,241.93 : x
  2. Step 2: Convert to fraction form
    799,878/1,200,259.86 = 479,241.93/x
  3. Step 3: Cross multiply
    799,878x = 1,200,259.86 × 479,241.93
  4. Step 4: Simplify right side
    799,878x = 575,214,851,807.93
  5. Step 5: Solve for x
    x = 575,214,851,807.93/799,878
  6. Step 6: Final answer
    x = 719,128.23

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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.