Home / 789,486.76-1,089,498.22-435,878.96

Finding the Fourth Proportional to 789,486.76, 1,089,498.22 and 435,878.96

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Solution

The fourth proportional to 789,486.76, 1,089,498.22 and 435,878.96 is: 601,516.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,486.76 : 1,089,498.22 = 435,878.96 : x
  2. Step 2: Convert to fraction form
    789,486.76/1,089,498.22 = 435,878.96/x
  3. Step 3: Cross multiply
    789,486.76x = 1,089,498.22 × 435,878.96
  4. Step 4: Simplify right side
    789,486.76x = 474,889,351,055.45
  5. Step 5: Solve for x
    x = 474,889,351,055.45/789,486.76
  6. Step 6: Final answer
    x = 601,516.55

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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.