Home / 1,512,379.15-2,087,230.31-1,129,741.63

Finding the Fourth Proportional to 1,512,379.15, 2,087,230.31 and 1,129,741.63

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Solution

The fourth proportional to 1,512,379.15, 2,087,230.31 and 1,129,741.63 is: 1,559,153.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,379.15 : 2,087,230.31 = 1,129,741.63 : x
  2. Step 2: Convert to fraction form
    1,512,379.15/2,087,230.31 = 1,129,741.63/x
  3. Step 3: Cross multiply
    1,512,379.15x = 2,087,230.31 × 1,129,741.63
  4. Step 4: Simplify right side
    1,512,379.15x = 2,358,030,972,604.81
  5. Step 5: Solve for x
    x = 2,358,030,972,604.81/1,512,379.15
  6. Step 6: Final answer
    x = 1,559,153.32

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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.