Finding the Fourth Proportional to 1,489,538.68, 2,232,558.42 and 689,129.48
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Solution
The fourth proportional to 1,489,538.68, 2,232,558.42 and 689,129.48 is: 1,032,884.77
Step by Step Solution
- Step 1: Write the proportion equation
1,489,538.68 : 2,232,558.42 = 689,129.48 : x - Step 2: Convert to fraction form
1,489,538.68/2,232,558.42 = 689,129.48/x - Step 3: Cross multiply
1,489,538.68x = 2,232,558.42 × 689,129.48 - Step 4: Simplify right side
1,489,538.68x = 1,538,521,823,044.22 - Step 5: Solve for x
x = 1,538,521,823,044.22/1,489,538.68 - Step 6: Final answer
x = 1,032,884.77
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.