Home / 1,128,715.25-1,693,128.24-454,705.13

Finding the Fourth Proportional to 1,128,715.25, 1,693,128.24 and 454,705.13

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Solution

The fourth proportional to 1,128,715.25, 1,693,128.24 and 454,705.13 is: 682,079.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,715.25 : 1,693,128.24 = 454,705.13 : x
  2. Step 2: Convert to fraction form
    1,128,715.25/1,693,128.24 = 454,705.13/x
  3. Step 3: Cross multiply
    1,128,715.25x = 1,693,128.24 × 454,705.13
  4. Step 4: Simplify right side
    1,128,715.25x = 769,874,088,010.23
  5. Step 5: Solve for x
    x = 769,874,088,010.23/1,128,715.25
  6. Step 6: Final answer
    x = 682,079.99

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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.