Home / 1,315,589.92-1,815,513.28-742,635.04

Finding the Fourth Proportional to 1,315,589.92, 1,815,513.28 and 742,635.04

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Solution

The fourth proportional to 1,315,589.92, 1,815,513.28 and 742,635.04 is: 1,024,835.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,589.92 : 1,815,513.28 = 742,635.04 : x
  2. Step 2: Convert to fraction form
    1,315,589.92/1,815,513.28 = 742,635.04/x
  3. Step 3: Cross multiply
    1,315,589.92x = 1,815,513.28 × 742,635.04
  4. Step 4: Simplify right side
    1,315,589.92x = 1,348,263,777,313.33
  5. Step 5: Solve for x
    x = 1,348,263,777,313.33/1,315,589.92
  6. Step 6: Final answer
    x = 1,024,835.90

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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.