Home / 789,109.11-1,089,332.96-462,376.71

Finding the Fourth Proportional to 789,109.11, 1,089,332.96 and 462,376.71

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Solution

The fourth proportional to 789,109.11, 1,089,332.96 and 462,376.71 is: 638,292.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,109.11 : 1,089,332.96 = 462,376.71 : x
  2. Step 2: Convert to fraction form
    789,109.11/1,089,332.96 = 462,376.71/x
  3. Step 3: Cross multiply
    789,109.11x = 1,089,332.96 × 462,376.71
  4. Step 4: Simplify right side
    789,109.11x = 503,682,187,827.48
  5. Step 5: Solve for x
    x = 503,682,187,827.48/789,109.11
  6. Step 6: Final answer
    x = 638,292.20

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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.