Finding the Fourth Proportional to 528,474.63, 729,484.11 and 313,614.66
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Solution
The fourth proportional to 528,474.63, 729,484.11 and 313,614.66 is: 432,900.46
Step by Step Solution
- Step 1: Write the proportion equation
528,474.63 : 729,484.11 = 313,614.66 : x - Step 2: Convert to fraction form
528,474.63/729,484.11 = 313,614.66/x - Step 3: Cross multiply
528,474.63x = 729,484.11 × 313,614.66 - Step 4: Simplify right side
528,474.63x = 228,776,911,133.05 - Step 5: Solve for x
x = 228,776,911,133.05/528,474.63 - Step 6: Final answer
x = 432,900.46
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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.