Home / 1,262,974.80-1,899,127.80-1,057,688.40

Finding the Fourth Proportional to 1,262,974.80, 1,899,127.80 and 1,057,688.40

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Solution

The fourth proportional to 1,262,974.80, 1,899,127.80 and 1,057,688.40 is: 1,590,439.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,974.80 : 1,899,127.80 = 1,057,688.40 : x
  2. Step 2: Convert to fraction form
    1,262,974.80/1,899,127.80 = 1,057,688.40/x
  3. Step 3: Cross multiply
    1,262,974.80x = 1,899,127.80 × 1,057,688.40
  4. Step 4: Simplify right side
    1,262,974.80x = 2,008,685,444,177.52
  5. Step 5: Solve for x
    x = 2,008,685,444,177.52/1,262,974.80
  6. Step 6: Final answer
    x = 1,590,439.84

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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.