Finding the Fourth Proportional to 840,394.18, 1,159,751.37 and 458,422.66
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Solution
The fourth proportional to 840,394.18, 1,159,751.37 and 458,422.66 is: 632,627.31
Step by Step Solution
- Step 1: Write the proportion equation
840,394.18 : 1,159,751.37 = 458,422.66 : x - Step 2: Convert to fraction form
840,394.18/1,159,751.37 = 458,422.66/x - Step 3: Cross multiply
840,394.18x = 1,159,751.37 × 458,422.66 - Step 4: Simplify right side
840,394.18x = 531,656,307,974.04 - Step 5: Solve for x
x = 531,656,307,974.04/840,394.18 - Step 6: Final answer
x = 632,627.31
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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.