Home / 789,562.29-1,089,582.39-445,398.96

Finding the Fourth Proportional to 789,562.29, 1,089,582.39 and 445,398.96

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Solution

The fourth proportional to 789,562.29, 1,089,582.39 and 445,398.96 is: 614,642.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,562.29 : 1,089,582.39 = 445,398.96 : x
  2. Step 2: Convert to fraction form
    789,562.29/1,089,582.39 = 445,398.96/x
  3. Step 3: Cross multiply
    789,562.29x = 1,089,582.39 × 445,398.96
  4. Step 4: Simplify right side
    789,562.29x = 485,298,863,340.31
  5. Step 5: Solve for x
    x = 485,298,863,340.31/789,562.29
  6. Step 6: Final answer
    x = 614,642.91

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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.