Home / 1,378,001.73-1,901,705.67-766,217.31

Finding the Fourth Proportional to 1,378,001.73, 1,901,705.67 and 766,217.31

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Solution

The fourth proportional to 1,378,001.73, 1,901,705.67 and 766,217.31 is: 1,057,415.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,001.73 : 1,901,705.67 = 766,217.31 : x
  2. Step 2: Convert to fraction form
    1,378,001.73/1,901,705.67 = 766,217.31/x
  3. Step 3: Cross multiply
    1,378,001.73x = 1,901,705.67 × 766,217.31
  4. Step 4: Simplify right side
    1,378,001.73x = 1,457,119,802,879.15
  5. Step 5: Solve for x
    x = 1,457,119,802,879.15/1,378,001.73
  6. Step 6: Final answer
    x = 1,057,415.08

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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.