Finding the Fourth Proportional to 644,497.08, 889,381.26 and 358,035.18
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Solution
The fourth proportional to 644,497.08, 889,381.26 and 358,035.18 is: 494,074.82
Step by Step Solution
- Step 1: Write the proportion equation
644,497.08 : 889,381.26 = 358,035.18 : x - Step 2: Convert to fraction form
644,497.08/889,381.26 = 358,035.18/x - Step 3: Cross multiply
644,497.08x = 889,381.26 × 358,035.18 - Step 4: Simplify right side
644,497.08x = 318,429,779,512.73 - Step 5: Solve for x
x = 318,429,779,512.73/644,497.08 - Step 6: Final answer
x = 494,074.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.