Home / 1,977,631.79-2,729,189.44-1,118,173.59

Finding the Fourth Proportional to 1,977,631.79, 2,729,189.44 and 1,118,173.59

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Solution

The fourth proportional to 1,977,631.79, 2,729,189.44 and 1,118,173.59 is: 1,543,112.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977,631.79 : 2,729,189.44 = 1,118,173.59 : x
  2. Step 2: Convert to fraction form
    1,977,631.79/2,729,189.44 = 1,118,173.59/x
  3. Step 3: Cross multiply
    1,977,631.79x = 2,729,189.44 × 1,118,173.59
  4. Step 4: Simplify right side
    1,977,631.79x = 3,051,707,553,914.89
  5. Step 5: Solve for x
    x = 3,051,707,553,914.89/1,977,631.79
  6. Step 6: Final answer
    x = 1,543,112.10

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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.