Finding the Fourth Proportional to 1,138,552.64, 1,571,207.36 and 622,316.80
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Solution
The fourth proportional to 1,138,552.64, 1,571,207.36 and 622,316.80 is: 858,799.76
Step by Step Solution
- Step 1: Write the proportion equation
1,138,552.64 : 1,571,207.36 = 622,316.80 : x - Step 2: Convert to fraction form
1,138,552.64/1,571,207.36 = 622,316.80/x - Step 3: Cross multiply
1,138,552.64x = 1,571,207.36 × 622,316.80 - Step 4: Simplify right side
1,138,552.64x = 977,788,736,411.65 - Step 5: Solve for x
x = 977,788,736,411.65/1,138,552.64 - Step 6: Final answer
x = 858,799.76
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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.