Home / 1,127,142.43-1,686,722.60-700,878.98

Finding the Fourth Proportional to 1,127,142.43, 1,686,722.60 and 700,878.98

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Solution

The fourth proportional to 1,127,142.43, 1,686,722.60 and 700,878.98 is: 1,048,836.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,142.43 : 1,686,722.60 = 700,878.98 : x
  2. Step 2: Convert to fraction form
    1,127,142.43/1,686,722.60 = 700,878.98/x
  3. Step 3: Cross multiply
    1,127,142.43x = 1,686,722.60 × 700,878.98
  4. Step 4: Simplify right side
    1,127,142.43x = 1,182,188,421,399.95
  5. Step 5: Solve for x
    x = 1,182,188,421,399.95/1,127,142.43
  6. Step 6: Final answer
    x = 1,048,836.77

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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.