Home / 1,255,525.80-1,880,831.10-755,404.20

Finding the Fourth Proportional to 1,255,525.80, 1,880,831.10 and 755,404.20

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Solution

The fourth proportional to 1,255,525.80, 1,880,831.10 and 755,404.20 is: 1,131,627.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,525.80 : 1,880,831.10 = 755,404.20 : x
  2. Step 2: Convert to fraction form
    1,255,525.80/1,880,831.10 = 755,404.20/x
  3. Step 3: Cross multiply
    1,255,525.80x = 1,880,831.10 × 755,404.20
  4. Step 4: Simplify right side
    1,255,525.80x = 1,420,787,712,430.62
  5. Step 5: Solve for x
    x = 1,420,787,712,430.62/1,255,525.80
  6. Step 6: Final answer
    x = 1,131,627.65

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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.