Home / 789,449.07-1,089,445.86-435,840.89

Finding the Fourth Proportional to 789,449.07, 1,089,445.86 and 435,840.89

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Solution

The fourth proportional to 789,449.07, 1,089,445.86 and 435,840.89 is: 601,463.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,449.07 : 1,089,445.86 = 435,840.89 : x
  2. Step 2: Convert to fraction form
    789,449.07/1,089,445.86 = 435,840.89/x
  3. Step 3: Cross multiply
    789,449.07x = 1,089,445.86 × 435,840.89
  4. Step 4: Simplify right side
    789,449.07x = 474,825,053,229.22
  5. Step 5: Solve for x
    x = 474,825,053,229.22/789,449.07
  6. Step 6: Final answer
    x = 601,463.82

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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.