Finding the Fourth Proportional to 1,118,128.96, 1,543,011.42 and 608,830.12
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Solution
The fourth proportional to 1,118,128.96, 1,543,011.42 and 608,830.12 is: 840,182.00
Step by Step Solution
- Step 1: Write the proportion equation
1,118,128.96 : 1,543,011.42 = 608,830.12 : x - Step 2: Convert to fraction form
1,118,128.96/1,543,011.42 = 608,830.12/x - Step 3: Cross multiply
1,118,128.96x = 1,543,011.42 × 608,830.12 - Step 4: Simplify right side
1,118,128.96x = 939,431,827,999.97 - Step 5: Solve for x
x = 939,431,827,999.97/1,118,128.96 - Step 6: Final answer
x = 840,182.00
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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.