Finding the Fourth Proportional to 1,420,154.88, 2,117,724.36 and 1,407,360.94
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Solution
The fourth proportional to 1,420,154.88, 2,117,724.36 and 1,407,360.94 is: 2,098,646.13
Step by Step Solution
- Step 1: Write the proportion equation
1,420,154.88 : 2,117,724.36 = 1,407,360.94 : x - Step 2: Convert to fraction form
1,420,154.88/2,117,724.36 = 1,407,360.94/x - Step 3: Cross multiply
1,420,154.88x = 2,117,724.36 × 1,407,360.94 - Step 4: Simplify right side
1,420,154.88x = 2,980,402,545,950.50 - Step 5: Solve for x
x = 2,980,402,545,950.50/1,420,154.88 - Step 6: Final answer
x = 2,098,646.13
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.