Home / 1,294,940.80-1,942,411.20-980,012.80

Finding the Fourth Proportional to 1,294,940.80, 1,942,411.20 and 980,012.80

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Solution

The fourth proportional to 1,294,940.80, 1,942,411.20 and 980,012.80 is: 1,470,019.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,940.80 : 1,942,411.20 = 980,012.80 : x
  2. Step 2: Convert to fraction form
    1,294,940.80/1,942,411.20 = 980,012.80/x
  3. Step 3: Cross multiply
    1,294,940.80x = 1,942,411.20 × 980,012.80
  4. Step 4: Simplify right side
    1,294,940.80x = 1,903,587,838,863.36
  5. Step 5: Solve for x
    x = 1,903,587,838,863.36/1,294,940.80
  6. Step 6: Final answer
    x = 1,470,019.20

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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.