Home / 789,461.04-1,089,390.42-445,278

Finding the Fourth Proportional to 789,461.04, 1,089,390.42 and 445,278

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Solution

The fourth proportional to 789,461.04, 1,089,390.42 and 445,278 is: 614,446.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,461.04 : 1,089,390.42 = 445,278 : x
  2. Step 2: Convert to fraction form
    789,461.04/1,089,390.42 = 445,278/x
  3. Step 3: Cross multiply
    789,461.04x = 1,089,390.42 × 445,278
  4. Step 4: Simplify right side
    789,461.04x = 485,081,587,436.76
  5. Step 5: Solve for x
    x = 485,081,587,436.76/789,461.04
  6. Step 6: Final answer
    x = 614,446.52

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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.