Home / 3,119,106.80-4,680,409.80-1,321,684.40

Finding the Fourth Proportional to 3,119,106.80, 4,680,409.80 and 1,321,684.40

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Solution

The fourth proportional to 3,119,106.80, 4,680,409.80 and 1,321,684.40 is: 1,983,267.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119,106.80 : 4,680,409.80 = 1,321,684.40 : x
  2. Step 2: Convert to fraction form
    3,119,106.80/4,680,409.80 = 1,321,684.40/x
  3. Step 3: Cross multiply
    3,119,106.80x = 4,680,409.80 × 1,321,684.40
  4. Step 4: Simplify right side
    3,119,106.80x = 6,186,024,618,267.12
  5. Step 5: Solve for x
    x = 6,186,024,618,267.12/3,119,106.80
  6. Step 6: Final answer
    x = 1,983,267.97

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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.