Home / 991,047.60-1,486,571.40-816,087.60

Finding the Fourth Proportional to 991,047.60, 1,486,571.40 and 816,087.60

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Solution

The fourth proportional to 991,047.60, 1,486,571.40 and 816,087.60 is: 1,224,131.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,047.60 : 1,486,571.40 = 816,087.60 : x
  2. Step 2: Convert to fraction form
    991,047.60/1,486,571.40 = 816,087.60/x
  3. Step 3: Cross multiply
    991,047.60x = 1,486,571.40 × 816,087.60
  4. Step 4: Simplify right side
    991,047.60x = 1,213,172,486,054.64
  5. Step 5: Solve for x
    x = 1,213,172,486,054.64/991,047.60
  6. Step 6: Final answer
    x = 1,224,131.40

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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.