Finding the Fourth Proportional to 1,240,943.36, 1,712,686.98 and 757,788.62
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Solution
The fourth proportional to 1,240,943.36, 1,712,686.98 and 757,788.62 is: 1,045,861.35
Step by Step Solution
- Step 1: Write the proportion equation
1,240,943.36 : 1,712,686.98 = 757,788.62 : x - Step 2: Convert to fraction form
1,240,943.36/1,712,686.98 = 757,788.62/x - Step 3: Cross multiply
1,240,943.36x = 1,712,686.98 × 757,788.62 - Step 4: Simplify right side
1,240,943.36x = 1,297,854,703,066.17 - Step 5: Solve for x
x = 1,297,854,703,066.17/1,240,943.36 - Step 6: Final answer
x = 1,045,861.35
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.