Finding the Fourth Proportional to 860,834.70, 1,291,202.24 and 328,409.55
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Solution
The fourth proportional to 860,834.70, 1,291,202.24 and 328,409.55 is: 492,595.32
Step by Step Solution
- Step 1: Write the proportion equation
860,834.70 : 1,291,202.24 = 328,409.55 : x - Step 2: Convert to fraction form
860,834.70/1,291,202.24 = 328,409.55/x - Step 3: Cross multiply
860,834.70x = 1,291,202.24 × 328,409.55 - Step 4: Simplify right side
860,834.70x = 424,043,144,955.34 - Step 5: Solve for x
x = 424,043,144,955.34/860,834.70 - Step 6: Final answer
x = 492,595.32
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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.