Home / 1,118,752.20-1,678,128.30-994,749.30

Finding the Fourth Proportional to 1,118,752.20, 1,678,128.30 and 994,749.30

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Solution

The fourth proportional to 1,118,752.20, 1,678,128.30 and 994,749.30 is: 1,492,123.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,752.20 : 1,678,128.30 = 994,749.30 : x
  2. Step 2: Convert to fraction form
    1,118,752.20/1,678,128.30 = 994,749.30/x
  3. Step 3: Cross multiply
    1,118,752.20x = 1,678,128.30 × 994,749.30
  4. Step 4: Simplify right side
    1,118,752.20x = 1,669,316,951,735.19
  5. Step 5: Solve for x
    x = 1,669,316,951,735.19/1,118,752.20
  6. Step 6: Final answer
    x = 1,492,123.95

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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.