Finding the Fourth Proportional to 1,047,599.81, 1,445,697.28 and 634,146.09
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Solution
The fourth proportional to 1,047,599.81, 1,445,697.28 and 634,146.09 is: 875,127.38
Step by Step Solution
- Step 1: Write the proportion equation
1,047,599.81 : 1,445,697.28 = 634,146.09 : x - Step 2: Convert to fraction form
1,047,599.81/1,445,697.28 = 634,146.09/x - Step 3: Cross multiply
1,047,599.81x = 1,445,697.28 × 634,146.09 - Step 4: Simplify right side
1,047,599.81x = 916,783,277,879.15 - Step 5: Solve for x
x = 916,783,277,879.15/1,047,599.81 - Step 6: Final answer
x = 875,127.38
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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.