Home / 1,318,019.94-1,818,809.79-774,211.50

Finding the Fourth Proportional to 1,318,019.94, 1,818,809.79 and 774,211.50

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Solution

The fourth proportional to 1,318,019.94, 1,818,809.79 and 774,211.50 is: 1,068,377.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,019.94 : 1,818,809.79 = 774,211.50 : x
  2. Step 2: Convert to fraction form
    1,318,019.94/1,818,809.79 = 774,211.50/x
  3. Step 3: Cross multiply
    1,318,019.94x = 1,818,809.79 × 774,211.50
  4. Step 4: Simplify right side
    1,318,019.94x = 1,408,143,455,730.59
  5. Step 5: Solve for x
    x = 1,408,143,455,730.59/1,318,019.94
  6. Step 6: Final answer
    x = 1,068,377.96

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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.