Home / 1,396,392.30-2,094,588.45-687,804.30

Finding the Fourth Proportional to 1,396,392.30, 2,094,588.45 and 687,804.30

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Solution

The fourth proportional to 1,396,392.30, 2,094,588.45 and 687,804.30 is: 1,031,706.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,392.30 : 2,094,588.45 = 687,804.30 : x
  2. Step 2: Convert to fraction form
    1,396,392.30/2,094,588.45 = 687,804.30/x
  3. Step 3: Cross multiply
    1,396,392.30x = 2,094,588.45 × 687,804.30
  4. Step 4: Simplify right side
    1,396,392.30x = 1,440,666,942,640.34
  5. Step 5: Solve for x
    x = 1,440,666,942,640.34/1,396,392.30
  6. Step 6: Final answer
    x = 1,031,706.45

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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.