Home / 1,384,346.90-2,076,131.55-438,007.70

Finding the Fourth Proportional to 1,384,346.90, 2,076,131.55 and 438,007.70

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Solution

The fourth proportional to 1,384,346.90, 2,076,131.55 and 438,007.70 is: 656,888.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,346.90 : 2,076,131.55 = 438,007.70 : x
  2. Step 2: Convert to fraction form
    1,384,346.90/2,076,131.55 = 438,007.70/x
  3. Step 3: Cross multiply
    1,384,346.90x = 2,076,131.55 × 438,007.70
  4. Step 4: Simplify right side
    1,384,346.90x = 909,361,605,112.94
  5. Step 5: Solve for x
    x = 909,361,605,112.94/1,384,346.90
  6. Step 6: Final answer
    x = 656,888.53

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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.