Finding the Fourth Proportional to 989,843.70, 1,484,814.15 and 517,451.70
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Solution
The fourth proportional to 989,843.70, 1,484,814.15 and 517,451.70 is: 776,202.96
Step by Step Solution
- Step 1: Write the proportion equation
989,843.70 : 1,484,814.15 = 517,451.70 : x - Step 2: Convert to fraction form
989,843.70/1,484,814.15 = 517,451.70/x - Step 3: Cross multiply
989,843.70x = 1,484,814.15 × 517,451.70 - Step 4: Simplify right side
989,843.70x = 768,319,606,101.56 - Step 5: Solve for x
x = 768,319,606,101.56/989,843.70 - Step 6: Final answer
x = 776,202.96
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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.