Home / 991,111.60-1,486,667.40-816,151.60

Finding the Fourth Proportional to 991,111.60, 1,486,667.40 and 816,151.60

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Solution

The fourth proportional to 991,111.60, 1,486,667.40 and 816,151.60 is: 1,224,227.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,111.60 : 1,486,667.40 = 816,151.60 : x
  2. Step 2: Convert to fraction form
    991,111.60/1,486,667.40 = 816,151.60/x
  3. Step 3: Cross multiply
    991,111.60x = 1,486,667.40 × 816,151.60
  4. Step 4: Simplify right side
    991,111.60x = 1,213,345,977,177.84
  5. Step 5: Solve for x
    x = 1,213,345,977,177.84/991,111.60
  6. Step 6: Final answer
    x = 1,224,227.40

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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.