Home / 1,118,912.81-1,678,380.92-895,692.20

Finding the Fourth Proportional to 1,118,912.81, 1,678,380.92 and 895,692.20

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Solution

The fourth proportional to 1,118,912.81, 1,678,380.92 and 895,692.20 is: 1,343,547.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,912.81 : 1,678,380.92 = 895,692.20 : x
  2. Step 2: Convert to fraction form
    1,118,912.81/1,678,380.92 = 895,692.20/x
  3. Step 3: Cross multiply
    1,118,912.81x = 1,678,380.92 × 895,692.20
  4. Step 4: Simplify right side
    1,118,912.81x = 1,503,312,689,161.30
  5. Step 5: Solve for x
    x = 1,503,312,689,161.30/1,118,912.81
  6. Step 6: Final answer
    x = 1,343,547.67

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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.