Home / 1,314,109.76-1,813,859.30-770,363.24

Finding the Fourth Proportional to 1,314,109.76, 1,813,859.30 and 770,363.24

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Solution

The fourth proportional to 1,314,109.76, 1,813,859.30 and 770,363.24 is: 1,063,328.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,109.76 : 1,813,859.30 = 770,363.24 : x
  2. Step 2: Convert to fraction form
    1,314,109.76/1,813,859.30 = 770,363.24/x
  3. Step 3: Cross multiply
    1,314,109.76x = 1,813,859.30 × 770,363.24
  4. Step 4: Simplify right side
    1,314,109.76x = 1,397,330,520,108.74
  5. Step 5: Solve for x
    x = 1,397,330,520,108.74/1,314,109.76
  6. Step 6: Final answer
    x = 1,063,328.63

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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.