Finding the Fourth Proportional to 1,378,693.48, 1,902,569.70 and 766,833.06
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Solution
The fourth proportional to 1,378,693.48, 1,902,569.70 and 766,833.06 is: 1,058,214.44
Step by Step Solution
- Step 1: Write the proportion equation
1,378,693.48 : 1,902,569.70 = 766,833.06 : x - Step 2: Convert to fraction form
1,378,693.48/1,902,569.70 = 766,833.06/x - Step 3: Cross multiply
1,378,693.48x = 1,902,569.70 × 766,833.06 - Step 4: Simplify right side
1,378,693.48x = 1,458,953,344,914.28 - Step 5: Solve for x
x = 1,458,953,344,914.28/1,378,693.48 - Step 6: Final answer
x = 1,058,214.44
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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.