Home / 2,106,072.30-3,159,108.45-686,271.90

Finding the Fourth Proportional to 2,106,072.30, 3,159,108.45 and 686,271.90

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Solution

The fourth proportional to 2,106,072.30, 3,159,108.45 and 686,271.90 is: 1,029,407.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106,072.30 : 3,159,108.45 = 686,271.90 : x
  2. Step 2: Convert to fraction form
    2,106,072.30/3,159,108.45 = 686,271.90/x
  3. Step 3: Cross multiply
    2,106,072.30x = 3,159,108.45 × 686,271.90
  4. Step 4: Simplify right side
    2,106,072.30x = 2,168,007,358,287.56
  5. Step 5: Solve for x
    x = 2,168,007,358,287.56/2,106,072.30
  6. Step 6: Final answer
    x = 1,029,407.85

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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.