Home / 1,330,555.40-1,997,085.90-699,921.80

Finding the Fourth Proportional to 1,330,555.40, 1,997,085.90 and 699,921.80

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Solution

The fourth proportional to 1,330,555.40, 1,997,085.90 and 699,921.80 is: 1,050,541.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,555.40 : 1,997,085.90 = 699,921.80 : x
  2. Step 2: Convert to fraction form
    1,330,555.40/1,997,085.90 = 699,921.80/x
  3. Step 3: Cross multiply
    1,330,555.40x = 1,997,085.90 × 699,921.80
  4. Step 4: Simplify right side
    1,330,555.40x = 1,397,803,957,882.62
  5. Step 5: Solve for x
    x = 1,397,803,957,882.62/1,330,555.40
  6. Step 6: Final answer
    x = 1,050,541.72

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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.