Home / 789,028.54-1,089,255.35-517,512.49

Finding the Fourth Proportional to 789,028.54, 1,089,255.35 and 517,512.49

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Solution

The fourth proportional to 789,028.54, 1,089,255.35 and 517,512.49 is: 714,426.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,028.54 : 1,089,255.35 = 517,512.49 : x
  2. Step 2: Convert to fraction form
    789,028.54/1,089,255.35 = 517,512.49/x
  3. Step 3: Cross multiply
    789,028.54x = 1,089,255.35 × 517,512.49
  4. Step 4: Simplify right side
    789,028.54x = 563,703,248,424.32
  5. Step 5: Solve for x
    x = 563,703,248,424.32/789,028.54
  6. Step 6: Final answer
    x = 714,426.94

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Double scale
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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.