Finding the Fourth Proportional to 860,115.24, 1,290,328.41 and 354,394.88
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Solution
The fourth proportional to 860,115.24, 1,290,328.41 and 354,394.88 is: 531,656.40
Step by Step Solution
- Step 1: Write the proportion equation
860,115.24 : 1,290,328.41 = 354,394.88 : x - Step 2: Convert to fraction form
860,115.24/1,290,328.41 = 354,394.88/x - Step 3: Cross multiply
860,115.24x = 1,290,328.41 × 354,394.88 - Step 4: Simplify right side
860,115.24x = 457,285,775,570.90 - Step 5: Solve for x
x = 457,285,775,570.90/860,115.24 - Step 6: Final answer
x = 531,656.40
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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.