Home / 887,185.80-1,224,315.09-505,212.66

Finding the Fourth Proportional to 887,185.80, 1,224,315.09 and 505,212.66

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Solution

The fourth proportional to 887,185.80, 1,224,315.09 and 505,212.66 is: 697,192.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,185.80 : 1,224,315.09 = 505,212.66 : x
  2. Step 2: Convert to fraction form
    887,185.80/1,224,315.09 = 505,212.66/x
  3. Step 3: Cross multiply
    887,185.80x = 1,224,315.09 × 505,212.66
  4. Step 4: Simplify right side
    887,185.80x = 618,539,483,297.04
  5. Step 5: Solve for x
    x = 618,539,483,297.04/887,185.80
  6. Step 6: Final answer
    x = 697,192.72

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Double scale
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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.