Home / 1,678,005.59-2,315,635.90-914,059.15

Finding the Fourth Proportional to 1,678,005.59, 2,315,635.90 and 914,059.15

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Solution

The fourth proportional to 1,678,005.59, 2,315,635.90 and 914,059.15 is: 1,261,395.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,005.59 : 2,315,635.90 = 914,059.15 : x
  2. Step 2: Convert to fraction form
    1,678,005.59/2,315,635.90 = 914,059.15/x
  3. Step 3: Cross multiply
    1,678,005.59x = 2,315,635.90 × 914,059.15
  4. Step 4: Simplify right side
    1,678,005.59x = 2,116,628,174,389.25
  5. Step 5: Solve for x
    x = 2,116,628,174,389.25/1,678,005.59
  6. Step 6: Final answer
    x = 1,261,395.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.