Home / 1,129,201.76-1,693,880.84-455,289.12

Finding the Fourth Proportional to 1,129,201.76, 1,693,880.84 and 455,289.12

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Solution

The fourth proportional to 1,129,201.76, 1,693,880.84 and 455,289.12 is: 682,965.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,201.76 : 1,693,880.84 = 455,289.12 : x
  2. Step 2: Convert to fraction form
    1,129,201.76/1,693,880.84 = 455,289.12/x
  3. Step 3: Cross multiply
    1,129,201.76x = 1,693,880.84 × 455,289.12
  4. Step 4: Simplify right side
    1,129,201.76x = 771,205,518,166.68
  5. Step 5: Solve for x
    x = 771,205,518,166.68/1,129,201.76
  6. Step 6: Final answer
    x = 682,965.21

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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.