Finding the Fourth Proportional to 724,621.21, 1,087,069.88 and 292,372.96
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Solution
The fourth proportional to 724,621.21, 1,087,069.88 and 292,372.96 is: 438,615.15
Step by Step Solution
- Step 1: Write the proportion equation
724,621.21 : 1,087,069.88 = 292,372.96 : x - Step 2: Convert to fraction form
724,621.21/1,087,069.88 = 292,372.96/x - Step 3: Cross multiply
724,621.21x = 1,087,069.88 × 292,372.96 - Step 4: Simplify right side
724,621.21x = 317,829,838,542.45 - Step 5: Solve for x
x = 317,829,838,542.45/724,621.21 - Step 6: Final answer
x = 438,615.15
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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.