Home / 3,471,946.40-5,207,919.60-947,856.80

Finding the Fourth Proportional to 3,471,946.40, 5,207,919.60 and 947,856.80

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Solution

The fourth proportional to 3,471,946.40, 5,207,919.60 and 947,856.80 is: 1,421,785.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,471,946.40 : 5,207,919.60 = 947,856.80 : x
  2. Step 2: Convert to fraction form
    3,471,946.40/5,207,919.60 = 947,856.80/x
  3. Step 3: Cross multiply
    3,471,946.40x = 5,207,919.60 × 947,856.80
  4. Step 4: Simplify right side
    3,471,946.40x = 4,936,362,006,713.28
  5. Step 5: Solve for x
    x = 4,936,362,006,713.28/3,471,946.40
  6. Step 6: Final answer
    x = 1,421,785.20

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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.