Finding the Fourth Proportional to 860,217.12, 1,290,237.12 and 261,154.08
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Solution
The fourth proportional to 860,217.12, 1,290,237.12 and 261,154.08 is: 391,704.23
Step by Step Solution
- Step 1: Write the proportion equation
860,217.12 : 1,290,237.12 = 261,154.08 : x - Step 2: Convert to fraction form
860,217.12/1,290,237.12 = 261,154.08/x - Step 3: Cross multiply
860,217.12x = 1,290,237.12 × 261,154.08 - Step 4: Simplify right side
860,217.12x = 336,950,688,055.45 - Step 5: Solve for x
x = 336,950,688,055.45/860,217.12 - Step 6: Final answer
x = 391,704.23
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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.