Home / 887,186.80-1,224,316.47-505,213.66

Finding the Fourth Proportional to 887,186.80, 1,224,316.47 and 505,213.66

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Solution

The fourth proportional to 887,186.80, 1,224,316.47 and 505,213.66 is: 697,194.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,186.80 : 1,224,316.47 = 505,213.66 : x
  2. Step 2: Convert to fraction form
    887,186.80/1,224,316.47 = 505,213.66/x
  3. Step 3: Cross multiply
    887,186.80x = 1,224,316.47 × 505,213.66
  4. Step 4: Simplify right side
    887,186.80x = 618,541,404,806.98
  5. Step 5: Solve for x
    x = 618,541,404,806.98/887,186.80
  6. Step 6: Final answer
    x = 697,194.10

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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.