Home / 789,225.77-1,089,105.05-498,993.56

Finding the Fourth Proportional to 789,225.77, 1,089,105.05 and 498,993.56

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Solution

The fourth proportional to 789,225.77, 1,089,105.05 and 498,993.56 is: 688,594.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,225.77 : 1,089,105.05 = 498,993.56 : x
  2. Step 2: Convert to fraction form
    789,225.77/1,089,105.05 = 498,993.56/x
  3. Step 3: Cross multiply
    789,225.77x = 1,089,105.05 × 498,993.56
  4. Step 4: Simplify right side
    789,225.77x = 543,456,406,113.48
  5. Step 5: Solve for x
    x = 543,456,406,113.48/789,225.77
  6. Step 6: Final answer
    x = 688,594.35

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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.