Home / 1,400,714.56-2,101,728-690,355.36

Finding the Fourth Proportional to 1,400,714.56, 2,101,728 and 690,355.36

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Solution

The fourth proportional to 1,400,714.56, 2,101,728 and 690,355.36 is: 1,035,856.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,714.56 : 2,101,728 = 690,355.36 : x
  2. Step 2: Convert to fraction form
    1,400,714.56/2,101,728 = 690,355.36/x
  3. Step 3: Cross multiply
    1,400,714.56x = 2,101,728 × 690,355.36
  4. Step 4: Simplify right side
    1,400,714.56x = 1,450,939,190,062.08
  5. Step 5: Solve for x
    x = 1,450,939,190,062.08/1,400,714.56
  6. Step 6: Final answer
    x = 1,035,856.43

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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.