Home / 1,304,135.40-1,957,355.10-770,989.80

Finding the Fourth Proportional to 1,304,135.40, 1,957,355.10 and 770,989.80

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Solution

The fourth proportional to 1,304,135.40, 1,957,355.10 and 770,989.80 is: 1,157,165.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,304,135.40 : 1,957,355.10 = 770,989.80 : x
  2. Step 2: Convert to fraction form
    1,304,135.40/1,957,355.10 = 770,989.80/x
  3. Step 3: Cross multiply
    1,304,135.40x = 1,957,355.10 × 770,989.80
  4. Step 4: Simplify right side
    1,304,135.40x = 1,509,100,817,077.98
  5. Step 5: Solve for x
    x = 1,509,100,817,077.98/1,304,135.40
  6. Step 6: Final answer
    x = 1,157,165.75

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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.