Home / 1,418,428.56-2,128,036.50-787,785.24

Finding the Fourth Proportional to 1,418,428.56, 2,128,036.50 and 787,785.24

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Solution

The fourth proportional to 1,418,428.56, 2,128,036.50 and 787,785.24 is: 1,181,896.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,428.56 : 2,128,036.50 = 787,785.24 : x
  2. Step 2: Convert to fraction form
    1,418,428.56/2,128,036.50 = 787,785.24/x
  3. Step 3: Cross multiply
    1,418,428.56x = 2,128,036.50 × 787,785.24
  4. Step 4: Simplify right side
    1,418,428.56x = 1,676,435,744,881.26
  5. Step 5: Solve for x
    x = 1,676,435,744,881.26/1,418,428.56
  6. Step 6: Final answer
    x = 1,181,896.50

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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.