Home / 3,211,678.40-4,813,312.80-1,616,043.20

Finding the Fourth Proportional to 3,211,678.40, 4,813,312.80 and 1,616,043.20

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Solution

The fourth proportional to 3,211,678.40, 4,813,312.80 and 1,616,043.20 is: 2,421,949.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211,678.40 : 4,813,312.80 = 1,616,043.20 : x
  2. Step 2: Convert to fraction form
    3,211,678.40/4,813,312.80 = 1,616,043.20/x
  3. Step 3: Cross multiply
    3,211,678.40x = 4,813,312.80 × 1,616,043.20
  4. Step 4: Simplify right side
    3,211,678.40x = 7,778,521,419,912.96
  5. Step 5: Solve for x
    x = 7,778,521,419,912.96/3,211,678.40
  6. Step 6: Final answer
    x = 2,421,949.04

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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.