Finding the Fourth Proportional to 921,586.74, 1,272,335.31 and 819,329.76
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Solution
The fourth proportional to 921,586.74, 1,272,335.31 and 819,329.76 is: 1,131,160.14
Step by Step Solution
- Step 1: Write the proportion equation
921,586.74 : 1,272,335.31 = 819,329.76 : x - Step 2: Convert to fraction form
921,586.74/1,272,335.31 = 819,329.76/x - Step 3: Cross multiply
921,586.74x = 1,272,335.31 × 819,329.76 - Step 4: Simplify right side
921,586.74x = 1,042,462,186,992.15 - Step 5: Solve for x
x = 1,042,462,186,992.15/921,586.74 - Step 6: Final answer
x = 1,131,160.14
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.