Finding the Fourth Proportional to 1,077,916.62, 1,617,216.12 and 319,761.06
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Solution
The fourth proportional to 1,077,916.62, 1,617,216.12 and 319,761.06 is: 479,742.80
Step by Step Solution
- Step 1: Write the proportion equation
1,077,916.62 : 1,617,216.12 = 319,761.06 : x - Step 2: Convert to fraction form
1,077,916.62/1,617,216.12 = 319,761.06/x - Step 3: Cross multiply
1,077,916.62x = 1,617,216.12 × 319,761.06 - Step 4: Simplify right side
1,077,916.62x = 517,122,740,780.29 - Step 5: Solve for x
x = 517,122,740,780.29/1,077,916.62 - Step 6: Final answer
x = 479,742.80
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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.