Finding the Fourth Proportional to 989,782.29, 1,484,672.90 and 358,695.09
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Solution
The fourth proportional to 989,782.29, 1,484,672.90 and 358,695.09 is: 538,042.44
Step by Step Solution
- Step 1: Write the proportion equation
989,782.29 : 1,484,672.90 = 358,695.09 : x - Step 2: Convert to fraction form
989,782.29/1,484,672.90 = 358,695.09/x - Step 3: Cross multiply
989,782.29x = 1,484,672.90 × 358,695.09 - Step 4: Simplify right side
989,782.29x = 532,544,877,692.59 - Step 5: Solve for x
x = 532,544,877,692.59/989,782.29 - Step 6: Final answer
x = 538,042.44
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.