Home / 1,082,316.80-1,622,978.27-313,639.76

Finding the Fourth Proportional to 1,082,316.80, 1,622,978.27 and 313,639.76

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Solution

The fourth proportional to 1,082,316.80, 1,622,978.27 and 313,639.76 is: 470,315.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,082,316.80 : 1,622,978.27 = 313,639.76 : x
  2. Step 2: Convert to fraction form
    1,082,316.80/1,622,978.27 = 313,639.76/x
  3. Step 3: Cross multiply
    1,082,316.80x = 1,622,978.27 × 313,639.76
  4. Step 4: Simplify right side
    1,082,316.80x = 509,030,518,753.41
  5. Step 5: Solve for x
    x = 509,030,518,753.41/1,082,316.80
  6. Step 6: Final answer
    x = 470,315.64

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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.