Home / 1,102,150.10-1,653,855.87-428,144.06

Finding the Fourth Proportional to 1,102,150.10, 1,653,855.87 and 428,144.06

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Solution

The fourth proportional to 1,102,150.10, 1,653,855.87 and 428,144.06 is: 642,461.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,150.10 : 1,653,855.87 = 428,144.06 : x
  2. Step 2: Convert to fraction form
    1,102,150.10/1,653,855.87 = 428,144.06/x
  3. Step 3: Cross multiply
    1,102,150.10x = 1,653,855.87 × 428,144.06
  4. Step 4: Simplify right side
    1,102,150.10x = 708,088,566,836.63
  5. Step 5: Solve for x
    x = 708,088,566,836.63/1,102,150.10
  6. Step 6: Final answer
    x = 642,461.10

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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.