Home / 1,211,741.31-1,819,973.93-987,267.63

Finding the Fourth Proportional to 1,211,741.31, 1,819,973.93 and 987,267.63

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Solution

The fourth proportional to 1,211,741.31, 1,819,973.93 and 987,267.63 is: 1,482,825.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,741.31 : 1,819,973.93 = 987,267.63 : x
  2. Step 2: Convert to fraction form
    1,211,741.31/1,819,973.93 = 987,267.63/x
  3. Step 3: Cross multiply
    1,211,741.31x = 1,819,973.93 × 987,267.63
  4. Step 4: Simplify right side
    1,211,741.31x = 1,796,801,343,596.55
  5. Step 5: Solve for x
    x = 1,796,801,343,596.55/1,211,741.31
  6. Step 6: Final answer
    x = 1,482,825.85

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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.