Home / 3,120,447.60-4,680,325.80-876,812.40

Finding the Fourth Proportional to 3,120,447.60, 4,680,325.80 and 876,812.40

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Solution

The fourth proportional to 3,120,447.60, 4,680,325.80 and 876,812.40 is: 1,315,121.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,447.60 : 4,680,325.80 = 876,812.40 : x
  2. Step 2: Convert to fraction form
    3,120,447.60/4,680,325.80 = 876,812.40/x
  3. Step 3: Cross multiply
    3,120,447.60x = 4,680,325.80 × 876,812.40
  4. Step 4: Simplify right side
    3,120,447.60x = 4,103,767,697,479.92
  5. Step 5: Solve for x
    x = 4,103,767,697,479.92/3,120,447.60
  6. Step 6: Final answer
    x = 1,315,121.49

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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.