Home / 2,840,407.20-4,260,632.40-947,145.60

Finding the Fourth Proportional to 2,840,407.20, 4,260,632.40 and 947,145.60

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Solution

The fourth proportional to 2,840,407.20, 4,260,632.40 and 947,145.60 is: 1,420,725.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840,407.20 : 4,260,632.40 = 947,145.60 : x
  2. Step 2: Convert to fraction form
    2,840,407.20/4,260,632.40 = 947,145.60/x
  3. Step 3: Cross multiply
    2,840,407.20x = 4,260,632.40 × 947,145.60
  4. Step 4: Simplify right side
    2,840,407.20x = 4,035,439,230,877.44
  5. Step 5: Solve for x
    x = 4,035,439,230,877.44/2,840,407.20
  6. Step 6: Final answer
    x = 1,420,725.60

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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.