Home / 3,120,961.40-4,681,442.03-877,099.40

Finding the Fourth Proportional to 3,120,961.40, 4,681,442.03 and 877,099.40

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Solution

The fourth proportional to 3,120,961.40, 4,681,442.03 and 877,099.40 is: 1,315,649.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,961.40 : 4,681,442.03 = 877,099.40 : x
  2. Step 2: Convert to fraction form
    3,120,961.40/4,681,442.03 = 877,099.40/x
  3. Step 3: Cross multiply
    3,120,961.40x = 4,681,442.03 × 877,099.40
  4. Step 4: Simplify right side
    3,120,961.40x = 4,106,089,972,240.57
  5. Step 5: Solve for x
    x = 4,106,089,972,240.57/3,120,961.40
  6. Step 6: Final answer
    x = 1,315,649.07

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.