Home / 1,179,010.86-1,768,889.94-420,835.53

Finding the Fourth Proportional to 1,179,010.86, 1,768,889.94 and 420,835.53

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Solution

The fourth proportional to 1,179,010.86, 1,768,889.94 and 420,835.53 is: 631,386.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,010.86 : 1,768,889.94 = 420,835.53 : x
  2. Step 2: Convert to fraction form
    1,179,010.86/1,768,889.94 = 420,835.53/x
  3. Step 3: Cross multiply
    1,179,010.86x = 1,768,889.94 × 420,835.53
  4. Step 4: Simplify right side
    1,179,010.86x = 744,411,735,411.57
  5. Step 5: Solve for x
    x = 744,411,735,411.57/1,179,010.86
  6. Step 6: Final answer
    x = 631,386.67

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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.