Finding the Fourth Proportional to 864,495.36, 1,295,652.24 and 438,138.40
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Solution
The fourth proportional to 864,495.36, 1,295,652.24 and 438,138.40 is: 656,654.77
Step by Step Solution
- Step 1: Write the proportion equation
864,495.36 : 1,295,652.24 = 438,138.40 : x - Step 2: Convert to fraction form
864,495.36/1,295,652.24 = 438,138.40/x - Step 3: Cross multiply
864,495.36x = 1,295,652.24 × 438,138.40 - Step 4: Simplify right side
864,495.36x = 567,674,999,390.02 - Step 5: Solve for x
x = 567,674,999,390.02/864,495.36 - Step 6: Final answer
x = 656,654.77
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.