Home / 1,178,743.80-1,765,491.30-1,021,279.80

Finding the Fourth Proportional to 1,178,743.80, 1,765,491.30 and 1,021,279.80

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Solution

The fourth proportional to 1,178,743.80, 1,765,491.30 and 1,021,279.80 is: 1,529,645.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,743.80 : 1,765,491.30 = 1,021,279.80 : x
  2. Step 2: Convert to fraction form
    1,178,743.80/1,765,491.30 = 1,021,279.80/x
  3. Step 3: Cross multiply
    1,178,743.80x = 1,765,491.30 × 1,021,279.80
  4. Step 4: Simplify right side
    1,178,743.80x = 1,803,060,601,765.74
  5. Step 5: Solve for x
    x = 1,803,060,601,765.74/1,178,743.80
  6. Step 6: Final answer
    x = 1,529,645.88

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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.