Home / 1,388,208.18-2,082,101.86-477,529.23

Finding the Fourth Proportional to 1,388,208.18, 2,082,101.86 and 477,529.23

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Solution

The fourth proportional to 1,388,208.18, 2,082,101.86 and 477,529.23 is: 716,221.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,208.18 : 2,082,101.86 = 477,529.23 : x
  2. Step 2: Convert to fraction form
    1,388,208.18/2,082,101.86 = 477,529.23/x
  3. Step 3: Cross multiply
    1,388,208.18x = 2,082,101.86 × 477,529.23
  4. Step 4: Simplify right side
    1,388,208.18x = 994,264,497,987.37
  5. Step 5: Solve for x
    x = 994,264,497,987.37/1,388,208.18
  6. Step 6: Final answer
    x = 716,221.47

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Double scale
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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.