Home / 1,330,257.40-1,996,638.90-699,623.80

Finding the Fourth Proportional to 1,330,257.40, 1,996,638.90 and 699,623.80

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Solution

The fourth proportional to 1,330,257.40, 1,996,638.90 and 699,623.80 is: 1,050,094.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,257.40 : 1,996,638.90 = 699,623.80 : x
  2. Step 2: Convert to fraction form
    1,330,257.40/1,996,638.90 = 699,623.80/x
  3. Step 3: Cross multiply
    1,330,257.40x = 1,996,638.90 × 699,623.80
  4. Step 4: Simplify right side
    1,330,257.40x = 1,396,896,094,445.82
  5. Step 5: Solve for x
    x = 1,396,896,094,445.82/1,330,257.40
  6. Step 6: Final answer
    x = 1,050,094.59

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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.