Finding the Fourth Proportional to 987,762.09, 1,363,111.83 and 535,053.09
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Solution
The fourth proportional to 987,762.09, 1,363,111.83 and 535,053.09 is: 738,373.34
Step by Step Solution
- Step 1: Write the proportion equation
987,762.09 : 1,363,111.83 = 535,053.09 : x - Step 2: Convert to fraction form
987,762.09/1,363,111.83 = 535,053.09/x - Step 3: Cross multiply
987,762.09x = 1,363,111.83 × 535,053.09 - Step 4: Simplify right side
987,762.09x = 729,337,196,657.06 - Step 5: Solve for x
x = 729,337,196,657.06/987,762.09 - Step 6: Final answer
x = 738,373.34
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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.