Home / 1,243,553.20-1,866,712.20-770,772.40

Finding the Fourth Proportional to 1,243,553.20, 1,866,712.20 and 770,772.40

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Solution

The fourth proportional to 1,243,553.20, 1,866,712.20 and 770,772.40 is: 1,157,015.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,553.20 : 1,866,712.20 = 770,772.40 : x
  2. Step 2: Convert to fraction form
    1,243,553.20/1,866,712.20 = 770,772.40/x
  3. Step 3: Cross multiply
    1,243,553.20x = 1,866,712.20 × 770,772.40
  4. Step 4: Simplify right side
    1,243,553.20x = 1,438,810,242,503.28
  5. Step 5: Solve for x
    x = 1,438,810,242,503.28/1,243,553.20
  6. Step 6: Final answer
    x = 1,157,015.43

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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.