Home / 1,100,741.28-1,648,779.12-831,536.16

Finding the Fourth Proportional to 1,100,741.28, 1,648,779.12 and 831,536.16

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Solution

The fourth proportional to 1,100,741.28, 1,648,779.12 and 831,536.16 is: 1,245,541.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,741.28 : 1,648,779.12 = 831,536.16 : x
  2. Step 2: Convert to fraction form
    1,100,741.28/1,648,779.12 = 831,536.16/x
  3. Step 3: Cross multiply
    1,100,741.28x = 1,648,779.12 × 831,536.16
  4. Step 4: Simplify right side
    1,100,741.28x = 1,371,019,458,132.98
  5. Step 5: Solve for x
    x = 1,371,019,458,132.98/1,100,741.28
  6. Step 6: Final answer
    x = 1,245,541.97

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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.