Finding the Fourth Proportional to 1,138,970, 1,571,811.41 and 629,705.18
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Solution
The fourth proportional to 1,138,970, 1,571,811.41 and 629,705.18 is: 869,011.29
Step by Step Solution
- Step 1: Write the proportion equation
1,138,970 : 1,571,811.41 = 629,705.18 : x - Step 2: Convert to fraction form
1,138,970/1,571,811.41 = 629,705.18/x - Step 3: Cross multiply
1,138,970x = 1,571,811.41 × 629,705.18 - Step 4: Simplify right side
1,138,970x = 989,777,783,711.58 - Step 5: Solve for x
x = 989,777,783,711.58/1,138,970 - Step 6: Final answer
x = 869,011.29
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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.