Home / 1,394,821.80-2,092,232.70-397,420.20

Finding the Fourth Proportional to 1,394,821.80, 2,092,232.70 and 397,420.20

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Solution

The fourth proportional to 1,394,821.80, 2,092,232.70 and 397,420.20 is: 596,130.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394,821.80 : 2,092,232.70 = 397,420.20 : x
  2. Step 2: Convert to fraction form
    1,394,821.80/2,092,232.70 = 397,420.20/x
  3. Step 3: Cross multiply
    1,394,821.80x = 2,092,232.70 × 397,420.20
  4. Step 4: Simplify right side
    1,394,821.80x = 831,495,538,080.54
  5. Step 5: Solve for x
    x = 831,495,538,080.54/1,394,821.80
  6. Step 6: Final answer
    x = 596,130.30

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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.