Finding the Fourth Proportional to 1,028,689.78, 1,542,472.18 and 816,818.68
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Solution
The fourth proportional to 1,028,689.78, 1,542,472.18 and 816,818.68 is: 1,224,781.38
Step by Step Solution
- Step 1: Write the proportion equation
1,028,689.78 : 1,542,472.18 = 816,818.68 : x - Step 2: Convert to fraction form
1,028,689.78/1,542,472.18 = 816,818.68/x - Step 3: Cross multiply
1,028,689.78x = 1,542,472.18 × 816,818.68 - Step 4: Simplify right side
1,028,689.78x = 1,259,920,090,004.32 - Step 5: Solve for x
x = 1,259,920,090,004.32/1,028,689.78 - Step 6: Final answer
x = 1,224,781.38
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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.