Home / 1,424,582.12-1,965,923.79-780,043.16

Finding the Fourth Proportional to 1,424,582.12, 1,965,923.79 and 780,043.16

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Solution

The fourth proportional to 1,424,582.12, 1,965,923.79 and 780,043.16 is: 1,076,459.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,582.12 : 1,965,923.79 = 780,043.16 : x
  2. Step 2: Convert to fraction form
    1,424,582.12/1,965,923.79 = 780,043.16/x
  3. Step 3: Cross multiply
    1,424,582.12x = 1,965,923.79 × 780,043.16
  4. Step 4: Simplify right side
    1,424,582.12x = 1,533,505,405,470.78
  5. Step 5: Solve for x
    x = 1,533,505,405,470.78/1,424,582.12
  6. Step 6: Final answer
    x = 1,076,459.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.