Finding the Fourth Proportional to 1,397,655.12, 2,096,421.70 and 438,088.84
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Solution
The fourth proportional to 1,397,655.12, 2,096,421.70 and 438,088.84 is: 657,114.15
Step by Step Solution
- Step 1: Write the proportion equation
1,397,655.12 : 2,096,421.70 = 438,088.84 : x - Step 2: Convert to fraction form
1,397,655.12/2,096,421.70 = 438,088.84/x - Step 3: Cross multiply
1,397,655.12x = 2,096,421.70 × 438,088.84 - Step 4: Simplify right side
1,397,655.12x = 918,418,950,703.83 - Step 5: Solve for x
x = 918,418,950,703.83/1,397,655.12 - Step 6: Final answer
x = 657,114.15
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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.