Home / 1,078,749.80-1,618,124.70-700,836.20

Finding the Fourth Proportional to 1,078,749.80, 1,618,124.70 and 700,836.20

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Solution

The fourth proportional to 1,078,749.80, 1,618,124.70 and 700,836.20 is: 1,051,254.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,749.80 : 1,618,124.70 = 700,836.20 : x
  2. Step 2: Convert to fraction form
    1,078,749.80/1,618,124.70 = 700,836.20/x
  3. Step 3: Cross multiply
    1,078,749.80x = 1,618,124.70 × 700,836.20
  4. Step 4: Simplify right side
    1,078,749.80x = 1,134,040,365,874.14
  5. Step 5: Solve for x
    x = 1,134,040,365,874.14/1,078,749.80
  6. Step 6: Final answer
    x = 1,051,254.30

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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.