Finding the Fourth Proportional to 627,028.36, 865,319.58 and 355,090.41
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Solution
The fourth proportional to 627,028.36, 865,319.58 and 355,090.41 is: 490,036.34
Step by Step Solution
- Step 1: Write the proportion equation
627,028.36 : 865,319.58 = 355,090.41 : x - Step 2: Convert to fraction form
627,028.36/865,319.58 = 355,090.41/x - Step 3: Cross multiply
627,028.36x = 865,319.58 × 355,090.41 - Step 4: Simplify right side
627,028.36x = 307,266,684,443.23 - Step 5: Solve for x
x = 307,266,684,443.23/627,028.36 - Step 6: Final answer
x = 490,036.34
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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.