Finding the Fourth Proportional to 1,316,374.80, 1,974,562.20 and 1,091,988.60
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Solution
The fourth proportional to 1,316,374.80, 1,974,562.20 and 1,091,988.60 is: 1,637,982.90
Step by Step Solution
- Step 1: Write the proportion equation
1,316,374.80 : 1,974,562.20 = 1,091,988.60 : x - Step 2: Convert to fraction form
1,316,374.80/1,974,562.20 = 1,091,988.60/x - Step 3: Cross multiply
1,316,374.80x = 1,974,562.20 × 1,091,988.60 - Step 4: Simplify right side
1,316,374.80x = 2,156,199,412,390.92 - Step 5: Solve for x
x = 2,156,199,412,390.92/1,316,374.80 - Step 6: Final answer
x = 1,637,982.90
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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.