Finding the Fourth Proportional to 987,981.41, 1,363,379.42 and 558,252.31
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Solution
The fourth proportional to 987,981.41, 1,363,379.42 and 558,252.31 is: 770,368.46
Step by Step Solution
- Step 1: Write the proportion equation
987,981.41 : 1,363,379.42 = 558,252.31 : x - Step 2: Convert to fraction form
987,981.41/1,363,379.42 = 558,252.31/x - Step 3: Cross multiply
987,981.41x = 1,363,379.42 × 558,252.31 - Step 4: Simplify right side
987,981.41x = 761,109,708,608.64 - Step 5: Solve for x
x = 761,109,708,608.64/987,981.41 - Step 6: Final answer
x = 770,368.46
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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.