Home / 1,294,127.40-1,942,940.70-821,735.40

Finding the Fourth Proportional to 1,294,127.40, 1,942,940.70 and 821,735.40

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Solution

The fourth proportional to 1,294,127.40, 1,942,940.70 and 821,735.40 is: 1,233,714.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,127.40 : 1,942,940.70 = 821,735.40 : x
  2. Step 2: Convert to fraction form
    1,294,127.40/1,942,940.70 = 821,735.40/x
  3. Step 3: Cross multiply
    1,294,127.40x = 1,942,940.70 × 821,735.40
  4. Step 4: Simplify right side
    1,294,127.40x = 1,596,583,153,290.78
  5. Step 5: Solve for x
    x = 1,596,583,153,290.78/1,294,127.40
  6. Step 6: Final answer
    x = 1,233,714.05

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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.