Finding the Fourth Proportional to 1,128,118.06, 1,692,056.49 and 318,482.56
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Solution
The fourth proportional to 1,128,118.06, 1,692,056.49 and 318,482.56 is: 477,689.79
Step by Step Solution
- Step 1: Write the proportion equation
1,128,118.06 : 1,692,056.49 = 318,482.56 : x - Step 2: Convert to fraction form
1,128,118.06/1,692,056.49 = 318,482.56/x - Step 3: Cross multiply
1,128,118.06x = 1,692,056.49 × 318,482.56 - Step 4: Simplify right side
1,128,118.06x = 538,890,482,599.81 - Step 5: Solve for x
x = 538,890,482,599.81/1,128,118.06 - Step 6: Final answer
x = 477,689.79
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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.