Finding the Fourth Proportional to 1,557,349.20, 2,336,461.20 and 758,656.80
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Solution
The fourth proportional to 1,557,349.20, 2,336,461.20 and 758,656.80 is: 1,138,198.28
Step by Step Solution
- Step 1: Write the proportion equation
1,557,349.20 : 2,336,461.20 = 758,656.80 : x - Step 2: Convert to fraction form
1,557,349.20/2,336,461.20 = 758,656.80/x - Step 3: Cross multiply
1,557,349.20x = 2,336,461.20 × 758,656.80 - Step 4: Simplify right side
1,557,349.20x = 1,772,572,177,316.16 - Step 5: Solve for x
x = 1,772,572,177,316.16/1,557,349.20 - Step 6: Final answer
x = 1,138,198.28
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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.