Home / 1,311,679.80-1,967,519.70-470,316.60

Finding the Fourth Proportional to 1,311,679.80, 1,967,519.70 and 470,316.60

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Solution

The fourth proportional to 1,311,679.80, 1,967,519.70 and 470,316.60 is: 705,474.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,679.80 : 1,967,519.70 = 470,316.60 : x
  2. Step 2: Convert to fraction form
    1,311,679.80/1,967,519.70 = 470,316.60/x
  3. Step 3: Cross multiply
    1,311,679.80x = 1,967,519.70 × 470,316.60
  4. Step 4: Simplify right side
    1,311,679.80x = 925,357,175,737.02
  5. Step 5: Solve for x
    x = 925,357,175,737.02/1,311,679.80
  6. Step 6: Final answer
    x = 705,474.90

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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.