Home / 3,120,453.60-4,680,334.80-876,818.40

Finding the Fourth Proportional to 3,120,453.60, 4,680,334.80 and 876,818.40

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Solution

The fourth proportional to 3,120,453.60, 4,680,334.80 and 876,818.40 is: 1,315,130.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,453.60 : 4,680,334.80 = 876,818.40 : x
  2. Step 2: Convert to fraction form
    3,120,453.60/4,680,334.80 = 876,818.40/x
  3. Step 3: Cross multiply
    3,120,453.60x = 4,680,334.80 × 876,818.40
  4. Step 4: Simplify right side
    3,120,453.60x = 4,103,803,670,800.32
  5. Step 5: Solve for x
    x = 4,103,803,670,800.32/3,120,453.60
  6. Step 6: Final answer
    x = 1,315,130.49

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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.