Finding the Fourth Proportional to 1,340,331.26, 1,849,671.32 and 728,484.08
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Solution
The fourth proportional to 1,340,331.26, 1,849,671.32 and 728,484.08 is: 1,005,315.73
Step by Step Solution
- Step 1: Write the proportion equation
1,340,331.26 : 1,849,671.32 = 728,484.08 : x - Step 2: Convert to fraction form
1,340,331.26/1,849,671.32 = 728,484.08/x - Step 3: Cross multiply
1,340,331.26x = 1,849,671.32 × 728,484.08 - Step 4: Simplify right side
1,340,331.26x = 1,347,456,096,961.81 - Step 5: Solve for x
x = 1,347,456,096,961.81/1,340,331.26 - Step 6: Final answer
x = 1,005,315.73
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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.