Home / 1,263,362.90-1,895,143.71-421,917.62

Finding the Fourth Proportional to 1,263,362.90, 1,895,143.71 and 421,917.62

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Solution

The fourth proportional to 1,263,362.90, 1,895,143.71 and 421,917.62 is: 632,909.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,362.90 : 1,895,143.71 = 421,917.62 : x
  2. Step 2: Convert to fraction form
    1,263,362.90/1,895,143.71 = 421,917.62/x
  3. Step 3: Cross multiply
    1,263,362.90x = 1,895,143.71 × 421,917.62
  4. Step 4: Simplify right side
    1,263,362.90x = 799,594,523,681.17
  5. Step 5: Solve for x
    x = 799,594,523,681.17/1,263,362.90
  6. Step 6: Final answer
    x = 632,909.61

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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.