Home / 789,712.06-1,089,801.48-445,547.50

Finding the Fourth Proportional to 789,712.06, 1,089,801.48 and 445,547.50

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Solution

The fourth proportional to 789,712.06, 1,089,801.48 and 445,547.50 is: 614,854.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,712.06 : 1,089,801.48 = 445,547.50 : x
  2. Step 2: Convert to fraction form
    789,712.06/1,089,801.48 = 445,547.50/x
  3. Step 3: Cross multiply
    789,712.06x = 1,089,801.48 × 445,547.50
  4. Step 4: Simplify right side
    789,712.06x = 485,558,324,910.30
  5. Step 5: Solve for x
    x = 485,558,324,910.30/789,712.06
  6. Step 6: Final answer
    x = 614,854.89

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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.