Finding the Fourth Proportional to 1,421,054.24, 2,133,098.08 and 611,839.12
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Solution
The fourth proportional to 1,421,054.24, 2,133,098.08 and 611,839.12 is: 918,411.71
Step by Step Solution
- Step 1: Write the proportion equation
1,421,054.24 : 2,133,098.08 = 611,839.12 : x - Step 2: Convert to fraction form
1,421,054.24/2,133,098.08 = 611,839.12/x - Step 3: Cross multiply
1,421,054.24x = 2,133,098.08 × 611,839.12 - Step 4: Simplify right side
1,421,054.24x = 1,305,112,852,140.89 - Step 5: Solve for x
x = 1,305,112,852,140.89/1,421,054.24 - Step 6: Final answer
x = 918,411.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.