Home / 1,188,010.60-1,778,516.70-1,118,804.20

Finding the Fourth Proportional to 1,188,010.60, 1,778,516.70 and 1,118,804.20

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Solution

The fourth proportional to 1,188,010.60, 1,778,516.70 and 1,118,804.20 is: 1,674,910.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,010.60 : 1,778,516.70 = 1,118,804.20 : x
  2. Step 2: Convert to fraction form
    1,188,010.60/1,778,516.70 = 1,118,804.20/x
  3. Step 3: Cross multiply
    1,188,010.60x = 1,778,516.70 × 1,118,804.20
  4. Step 4: Simplify right side
    1,188,010.60x = 1,989,811,953,730.14
  5. Step 5: Solve for x
    x = 1,989,811,953,730.14/1,188,010.60
  6. Step 6: Final answer
    x = 1,674,910.94

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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.