Finding the Fourth Proportional to 528,745.70, 729,858.62 and 313,885.94
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Solution
The fourth proportional to 528,745.70, 729,858.62 and 313,885.94 is: 433,275.11
Step by Step Solution
- Step 1: Write the proportion equation
528,745.70 : 729,858.62 = 313,885.94 : x - Step 2: Convert to fraction form
528,745.70/729,858.62 = 313,885.94/x - Step 3: Cross multiply
528,745.70x = 729,858.62 × 313,885.94 - Step 4: Simplify right side
528,745.70x = 229,092,353,787.08 - Step 5: Solve for x
x = 229,092,353,787.08/528,745.70 - Step 6: Final answer
x = 433,275.11
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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.