Home / 1,389,758.58-2,084,997.28-813,868.23

Finding the Fourth Proportional to 1,389,758.58, 2,084,997.28 and 813,868.23

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Solution

The fourth proportional to 1,389,758.58, 2,084,997.28 and 813,868.23 is: 1,221,012.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,758.58 : 2,084,997.28 = 813,868.23 : x
  2. Step 2: Convert to fraction form
    1,389,758.58/2,084,997.28 = 813,868.23/x
  3. Step 3: Cross multiply
    1,389,758.58x = 2,084,997.28 × 813,868.23
  4. Step 4: Simplify right side
    1,389,758.58x = 1,696,913,045,828.41
  5. Step 5: Solve for x
    x = 1,696,913,045,828.41/1,389,758.58
  6. Step 6: Final answer
    x = 1,221,012.82

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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.