Finding the Fourth Proportional to 860,424.18, 1,187,386.37 and 478,442.76
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Solution
The fourth proportional to 860,424.18, 1,187,386.37 and 478,442.76 is: 660,251.56
Step by Step Solution
- Step 1: Write the proportion equation
860,424.18 : 1,187,386.37 = 478,442.76 : x - Step 2: Convert to fraction form
860,424.18/1,187,386.37 = 478,442.76/x - Step 3: Cross multiply
860,424.18x = 1,187,386.37 × 478,442.76 - Step 4: Simplify right side
860,424.18x = 568,096,409,656.97 - Step 5: Solve for x
x = 568,096,409,656.97/860,424.18 - Step 6: Final answer
x = 660,251.56
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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.