Home / 789,565.79-1,089,587.22-445,402.46

Finding the Fourth Proportional to 789,565.79, 1,089,587.22 and 445,402.46

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Solution

The fourth proportional to 789,565.79, 1,089,587.22 and 445,402.46 is: 614,647.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,565.79 : 1,089,587.22 = 445,402.46 : x
  2. Step 2: Convert to fraction form
    789,565.79/1,089,587.22 = 445,402.46/x
  3. Step 3: Cross multiply
    789,565.79x = 1,089,587.22 × 445,402.46
  4. Step 4: Simplify right side
    789,565.79x = 485,304,828,172.56
  5. Step 5: Solve for x
    x = 485,304,828,172.56/789,565.79
  6. Step 6: Final answer
    x = 614,647.74

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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.