Home / 1,636,957.80-2,455,436.70-1,377,142.20

Finding the Fourth Proportional to 1,636,957.80, 2,455,436.70 and 1,377,142.20

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Solution

The fourth proportional to 1,636,957.80, 2,455,436.70 and 1,377,142.20 is: 2,065,713.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636,957.80 : 2,455,436.70 = 1,377,142.20 : x
  2. Step 2: Convert to fraction form
    1,636,957.80/2,455,436.70 = 1,377,142.20/x
  3. Step 3: Cross multiply
    1,636,957.80x = 2,455,436.70 × 1,377,142.20
  4. Step 4: Simplify right side
    1,636,957.80x = 3,381,485,498,998.74
  5. Step 5: Solve for x
    x = 3,381,485,498,998.74/1,636,957.80
  6. Step 6: Final answer
    x = 2,065,713.30

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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.