Finding the Fourth Proportional to 627,038.23, 865,283.80 and 355,108.07
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Solution
The fourth proportional to 627,038.23, 865,283.80 and 355,108.07 is: 490,032.74
Step by Step Solution
- Step 1: Write the proportion equation
627,038.23 : 865,283.80 = 355,108.07 : x - Step 2: Convert to fraction form
627,038.23/865,283.80 = 355,108.07/x - Step 3: Cross multiply
627,038.23x = 865,283.80 × 355,108.07 - Step 4: Simplify right side
627,038.23x = 307,269,260,220.27 - Step 5: Solve for x
x = 307,269,260,220.27/627,038.23 - Step 6: Final answer
x = 490,032.74
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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.