Home / 1,470,115.38-2,028,783.11-816,783.56

Finding the Fourth Proportional to 1,470,115.38, 2,028,783.11 and 816,783.56

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Solution

The fourth proportional to 1,470,115.38, 2,028,783.11 and 816,783.56 is: 1,127,174.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,470,115.38 : 2,028,783.11 = 816,783.56 : x
  2. Step 2: Convert to fraction form
    1,470,115.38/2,028,783.11 = 816,783.56/x
  3. Step 3: Cross multiply
    1,470,115.38x = 2,028,783.11 × 816,783.56
  4. Step 4: Simplify right side
    1,470,115.38x = 1,657,076,678,867.80
  5. Step 5: Solve for x
    x = 1,657,076,678,867.80/1,470,115.38
  6. Step 6: Final answer
    x = 1,127,174.58

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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.