Home / 1,338,678.78-1,848,897.75-902,343.58

Finding the Fourth Proportional to 1,338,678.78, 1,848,897.75 and 902,343.58

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Solution

The fourth proportional to 1,338,678.78, 1,848,897.75 and 902,343.58 is: 1,246,259.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,678.78 : 1,848,897.75 = 902,343.58 : x
  2. Step 2: Convert to fraction form
    1,338,678.78/1,848,897.75 = 902,343.58/x
  3. Step 3: Cross multiply
    1,338,678.78x = 1,848,897.75 × 902,343.58
  4. Step 4: Simplify right side
    1,338,678.78x = 1,668,341,003,288.60
  5. Step 5: Solve for x
    x = 1,668,341,003,288.60/1,338,678.78
  6. Step 6: Final answer
    x = 1,246,259.39

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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.