Home / 1,265,726.19-1,898,704.65-412,578.86

Finding the Fourth Proportional to 1,265,726.19, 1,898,704.65 and 412,578.86

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Solution

The fourth proportional to 1,265,726.19, 1,898,704.65 and 412,578.86 is: 618,905.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,726.19 : 1,898,704.65 = 412,578.86 : x
  2. Step 2: Convert to fraction form
    1,265,726.19/1,898,704.65 = 412,578.86/x
  3. Step 3: Cross multiply
    1,265,726.19x = 1,898,704.65 × 412,578.86
  4. Step 4: Simplify right side
    1,265,726.19x = 783,365,399,973.70
  5. Step 5: Solve for x
    x = 783,365,399,973.70/1,265,726.19
  6. Step 6: Final answer
    x = 618,905.89

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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.