Home / 3,119,115.80-4,680,423.30-1,321,693.40

Finding the Fourth Proportional to 3,119,115.80, 4,680,423.30 and 1,321,693.40

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Solution

The fourth proportional to 3,119,115.80, 4,680,423.30 and 1,321,693.40 is: 1,983,281.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119,115.80 : 4,680,423.30 = 1,321,693.40 : x
  2. Step 2: Convert to fraction form
    3,119,115.80/4,680,423.30 = 1,321,693.40/x
  3. Step 3: Cross multiply
    3,119,115.80x = 4,680,423.30 × 1,321,693.40
  4. Step 4: Simplify right side
    3,119,115.80x = 6,186,084,584,816.22
  5. Step 5: Solve for x
    x = 6,186,084,584,816.22/3,119,115.80
  6. Step 6: Final answer
    x = 1,983,281.48

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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.