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Finding the Fourth Proportional to 1,407,829.60, 1,942,779.52 and 795,971.80

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Solution

The fourth proportional to 1,407,829.60, 1,942,779.52 and 795,971.80 is: 1,098,426.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,829.60 : 1,942,779.52 = 795,971.80 : x
  2. Step 2: Convert to fraction form
    1,407,829.60/1,942,779.52 = 795,971.80/x
  3. Step 3: Cross multiply
    1,407,829.60x = 1,942,779.52 × 795,971.80
  4. Step 4: Simplify right side
    1,407,829.60x = 1,546,397,711,537.54
  5. Step 5: Solve for x
    x = 1,546,397,711,537.54/1,407,829.60
  6. Step 6: Final answer
    x = 1,098,426.76

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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.