Home / 1,262,340.04-1,893,101.10-420,665.80

Finding the Fourth Proportional to 1,262,340.04, 1,893,101.10 and 420,665.80

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Solution

The fourth proportional to 1,262,340.04, 1,893,101.10 and 420,665.80 is: 630,862.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,340.04 : 1,893,101.10 = 420,665.80 : x
  2. Step 2: Convert to fraction form
    1,262,340.04/1,893,101.10 = 420,665.80/x
  3. Step 3: Cross multiply
    1,262,340.04x = 1,893,101.10 × 420,665.80
  4. Step 4: Simplify right side
    1,262,340.04x = 796,362,888,712.38
  5. Step 5: Solve for x
    x = 796,362,888,712.38/1,262,340.04
  6. Step 6: Final answer
    x = 630,862.42

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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.