Finding the Fourth Proportional to 838,782.09, 1,157,552.06 and 476,239.68
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Solution
The fourth proportional to 838,782.09, 1,157,552.06 and 476,239.68 is: 657,229.36
Step by Step Solution
- Step 1: Write the proportion equation
838,782.09 : 1,157,552.06 = 476,239.68 : x - Step 2: Convert to fraction form
838,782.09/1,157,552.06 = 476,239.68/x - Step 3: Cross multiply
838,782.09x = 1,157,552.06 × 476,239.68 - Step 4: Simplify right side
838,782.09x = 551,272,214,468.78 - Step 5: Solve for x
x = 551,272,214,468.78/838,782.09 - Step 6: Final answer
x = 657,229.36
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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.