Finding the Fourth Proportional to 644,948.48, 889,990.56 and 358,458.68
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Solution
The fourth proportional to 644,948.48, 889,990.56 and 358,458.68 is: 494,651.67
Step by Step Solution
- Step 1: Write the proportion equation
644,948.48 : 889,990.56 = 358,458.68 : x - Step 2: Convert to fraction form
644,948.48/889,990.56 = 358,458.68/x - Step 3: Cross multiply
644,948.48x = 889,990.56 × 358,458.68 - Step 4: Simplify right side
644,948.48x = 319,024,841,350.06 - Step 5: Solve for x
x = 319,024,841,350.06/644,948.48 - Step 6: Final answer
x = 494,651.67
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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.