Home / 1,354,414.20-1,869,112.56-742,622.76

Finding the Fourth Proportional to 1,354,414.20, 1,869,112.56 and 742,622.76

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Solution

The fourth proportional to 1,354,414.20, 1,869,112.56 and 742,622.76 is: 1,024,830.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354,414.20 : 1,869,112.56 = 742,622.76 : x
  2. Step 2: Convert to fraction form
    1,354,414.20/1,869,112.56 = 742,622.76/x
  3. Step 3: Cross multiply
    1,354,414.20x = 1,869,112.56 × 742,622.76
  4. Step 4: Simplify right side
    1,354,414.20x = 1,388,045,528,057.87
  5. Step 5: Solve for x
    x = 1,388,045,528,057.87/1,354,414.20
  6. Step 6: Final answer
    x = 1,024,830.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.