Finding the Fourth Proportional to 818,704.24, 1,129,045.53 and 647,032.34
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Solution
The fourth proportional to 818,704.24, 1,129,045.53 and 647,032.34 is: 892,298.99
Step by Step Solution
- Step 1: Write the proportion equation
818,704.24 : 1,129,045.53 = 647,032.34 : x - Step 2: Convert to fraction form
818,704.24/1,129,045.53 = 647,032.34/x - Step 3: Cross multiply
818,704.24x = 1,129,045.53 × 647,032.34 - Step 4: Simplify right side
818,704.24x = 730,528,970,140.54 - Step 5: Solve for x
x = 730,528,970,140.54/818,704.24 - Step 6: Final answer
x = 892,298.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.