Home / 1,318,280.04-1,819,240.80-774,438.76

Finding the Fourth Proportional to 1,318,280.04, 1,819,240.80 and 774,438.76

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Solution

The fourth proportional to 1,318,280.04, 1,819,240.80 and 774,438.76 is: 1,068,733.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,280.04 : 1,819,240.80 = 774,438.76 : x
  2. Step 2: Convert to fraction form
    1,318,280.04/1,819,240.80 = 774,438.76/x
  3. Step 3: Cross multiply
    1,318,280.04x = 1,819,240.80 × 774,438.76
  4. Step 4: Simplify right side
    1,318,280.04x = 1,408,890,589,293.41
  5. Step 5: Solve for x
    x = 1,408,890,589,293.41/1,318,280.04
  6. Step 6: Final answer
    x = 1,068,733.92

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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.