Home / 1,386,743.05-2,076,376.62-905,779.83

Finding the Fourth Proportional to 1,386,743.05, 2,076,376.62 and 905,779.83

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Solution

The fourth proportional to 1,386,743.05, 2,076,376.62 and 905,779.83 is: 1,356,228.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,743.05 : 2,076,376.62 = 905,779.83 : x
  2. Step 2: Convert to fraction form
    1,386,743.05/2,076,376.62 = 905,779.83/x
  3. Step 3: Cross multiply
    1,386,743.05x = 2,076,376.62 × 905,779.83
  4. Step 4: Simplify right side
    1,386,743.05x = 1,880,740,061,879.57
  5. Step 5: Solve for x
    x = 1,880,740,061,879.57/1,386,743.05
  6. Step 6: Final answer
    x = 1,356,228.23

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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.