Finding the Fourth Proportional to 528,677.21, 729,554.88 and 286,954.58
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Solution
The fourth proportional to 528,677.21, 729,554.88 and 286,954.58 is: 395,986.65
Step by Step Solution
- Step 1: Write the proportion equation
528,677.21 : 729,554.88 = 286,954.58 : x - Step 2: Convert to fraction form
528,677.21/729,554.88 = 286,954.58/x - Step 3: Cross multiply
528,677.21x = 729,554.88 × 286,954.58 - Step 4: Simplify right side
528,677.21x = 209,349,117,077.32 - Step 5: Solve for x
x = 209,349,117,077.32/528,677.21 - Step 6: Final answer
x = 395,986.65
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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.