Home / 1,408,134.88-2,111,087.76-509,436.64

Finding the Fourth Proportional to 1,408,134.88, 2,111,087.76 and 509,436.64

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Solution

The fourth proportional to 1,408,134.88, 2,111,087.76 and 509,436.64 is: 763,751.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,134.88 : 2,111,087.76 = 509,436.64 : x
  2. Step 2: Convert to fraction form
    1,408,134.88/2,111,087.76 = 509,436.64/x
  3. Step 3: Cross multiply
    1,408,134.88x = 2,111,087.76 × 509,436.64
  4. Step 4: Simplify right side
    1,408,134.88x = 1,075,465,455,199.53
  5. Step 5: Solve for x
    x = 1,075,465,455,199.53/1,408,134.88
  6. Step 6: Final answer
    x = 763,751.73

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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.