Home / 1,315,224.95-1,814,973.68-742,318.43

Finding the Fourth Proportional to 1,315,224.95, 1,814,973.68 and 742,318.43

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Solution

The fourth proportional to 1,315,224.95, 1,814,973.68 and 742,318.43 is: 1,024,378.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,224.95 : 1,814,973.68 = 742,318.43 : x
  2. Step 2: Convert to fraction form
    1,315,224.95/1,814,973.68 = 742,318.43/x
  3. Step 3: Cross multiply
    1,315,224.95x = 1,814,973.68 × 742,318.43
  4. Step 4: Simplify right side
    1,315,224.95x = 1,347,288,405,409.85
  5. Step 5: Solve for x
    x = 1,347,288,405,409.85/1,315,224.95
  6. Step 6: Final answer
    x = 1,024,378.69

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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.