Finding the Fourth Proportional to 1,567,916.19, 2,351,869.71 and 430,679.47
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Solution
The fourth proportional to 1,567,916.19, 2,351,869.71 and 430,679.47 is: 646,017.95
Step by Step Solution
- Step 1: Write the proportion equation
1,567,916.19 : 2,351,869.71 = 430,679.47 : x - Step 2: Convert to fraction form
1,567,916.19/2,351,869.71 = 430,679.47/x - Step 3: Cross multiply
1,567,916.19x = 2,351,869.71 × 430,679.47 - Step 4: Simplify right side
1,567,916.19x = 1,012,902,010,216.56 - Step 5: Solve for x
x = 1,012,902,010,216.56/1,567,916.19 - Step 6: Final answer
x = 646,017.95
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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.