Home / 1,290,775.80-1,936,163.70-934,116.60

Finding the Fourth Proportional to 1,290,775.80, 1,936,163.70 and 934,116.60

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Solution

The fourth proportional to 1,290,775.80, 1,936,163.70 and 934,116.60 is: 1,401,174.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,775.80 : 1,936,163.70 = 934,116.60 : x
  2. Step 2: Convert to fraction form
    1,290,775.80/1,936,163.70 = 934,116.60/x
  3. Step 3: Cross multiply
    1,290,775.80x = 1,936,163.70 × 934,116.60
  4. Step 4: Simplify right side
    1,290,775.80x = 1,808,602,652,487.42
  5. Step 5: Solve for x
    x = 1,808,602,652,487.42/1,290,775.80
  6. Step 6: Final answer
    x = 1,401,174.90

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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.