Home / 770,210.52-1,155,589.40-343,707.56

Finding the Fourth Proportional to 770,210.52, 1,155,589.40 and 343,707.56

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Solution

The fourth proportional to 770,210.52, 1,155,589.40 and 343,707.56 is: 515,683.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,210.52 : 1,155,589.40 = 343,707.56 : x
  2. Step 2: Convert to fraction form
    770,210.52/1,155,589.40 = 343,707.56/x
  3. Step 3: Cross multiply
    770,210.52x = 1,155,589.40 × 343,707.56
  4. Step 4: Simplify right side
    770,210.52x = 397,184,813,035.86
  5. Step 5: Solve for x
    x = 397,184,813,035.86/770,210.52
  6. Step 6: Final answer
    x = 515,683.44

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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.