Home / 1,124,126.70-1,682,690.85-649,401.90

Finding the Fourth Proportional to 1,124,126.70, 1,682,690.85 and 649,401.90

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Solution

The fourth proportional to 1,124,126.70, 1,682,690.85 and 649,401.90 is: 972,081.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,126.70 : 1,682,690.85 = 649,401.90 : x
  2. Step 2: Convert to fraction form
    1,124,126.70/1,682,690.85 = 649,401.90/x
  3. Step 3: Cross multiply
    1,124,126.70x = 1,682,690.85 × 649,401.90
  4. Step 4: Simplify right side
    1,124,126.70x = 1,092,742,635,102.62
  5. Step 5: Solve for x
    x = 1,092,742,635,102.62/1,124,126.70
  6. Step 6: Final answer
    x = 972,081.38

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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.