Home / 887,109.88-1,224,223.32-505,138.18

Finding the Fourth Proportional to 887,109.88, 1,224,223.32 and 505,138.18

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Solution

The fourth proportional to 887,109.88, 1,224,223.32 and 505,138.18 is: 697,097.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,109.88 : 1,224,223.32 = 505,138.18 : x
  2. Step 2: Convert to fraction form
    887,109.88/1,224,223.32 = 505,138.18/x
  3. Step 3: Cross multiply
    887,109.88x = 1,224,223.32 × 505,138.18
  4. Step 4: Simplify right side
    887,109.88x = 618,401,939,778.36
  5. Step 5: Solve for x
    x = 618,401,939,778.36/887,109.88
  6. Step 6: Final answer
    x = 697,097.34

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1.5x scale

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.