Home / 1,425,951.54-1,967,779.17-781,340.58

Finding the Fourth Proportional to 1,425,951.54, 1,967,779.17 and 781,340.58

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Solution

The fourth proportional to 1,425,951.54, 1,967,779.17 and 781,340.58 is: 1,078,231.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,951.54 : 1,967,779.17 = 781,340.58 : x
  2. Step 2: Convert to fraction form
    1,425,951.54/1,967,779.17 = 781,340.58/x
  3. Step 3: Cross multiply
    1,425,951.54x = 1,967,779.17 × 781,340.58
  4. Step 4: Simplify right side
    1,425,951.54x = 1,537,505,717,999.72
  5. Step 5: Solve for x
    x = 1,537,505,717,999.72/1,425,951.54
  6. Step 6: Final answer
    x = 1,078,231.39

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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.