Home / 1,106,651.30-1,661,532.15-686,747.30

Finding the Fourth Proportional to 1,106,651.30, 1,661,532.15 and 686,747.30

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Solution

The fourth proportional to 1,106,651.30, 1,661,532.15 and 686,747.30 is: 1,031,086.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,106,651.30 : 1,661,532.15 = 686,747.30 : x
  2. Step 2: Convert to fraction form
    1,106,651.30/1,661,532.15 = 686,747.30/x
  3. Step 3: Cross multiply
    1,106,651.30x = 1,661,532.15 × 686,747.30
  4. Step 4: Simplify right side
    1,106,651.30x = 1,141,052,717,875.70
  5. Step 5: Solve for x
    x = 1,141,052,717,875.70/1,106,651.30
  6. Step 6: Final answer
    x = 1,031,086.05

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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.