Finding the Fourth Proportional to 860,947.16, 1,291,464.47 and 292,395.20
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Solution
The fourth proportional to 860,947.16, 1,291,464.47 and 292,395.20 is: 438,607.65
Step by Step Solution
- Step 1: Write the proportion equation
860,947.16 : 1,291,464.47 = 292,395.20 : x - Step 2: Convert to fraction form
860,947.16/1,291,464.47 = 292,395.20/x - Step 3: Cross multiply
860,947.16x = 1,291,464.47 × 292,395.20 - Step 4: Simplify right side
860,947.16x = 377,618,006,272.21 - Step 5: Solve for x
x = 377,618,006,272.21/860,947.16 - Step 6: Final answer
x = 438,607.65
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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.