Finding the Fourth Proportional to 826,398.44, 1,240,261.98 and 427,156.28
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Solution
The fourth proportional to 826,398.44, 1,240,261.98 and 427,156.28 is: 641,077.80
Step by Step Solution
- Step 1: Write the proportion equation
826,398.44 : 1,240,261.98 = 427,156.28 : x - Step 2: Convert to fraction form
826,398.44/1,240,261.98 = 427,156.28/x - Step 3: Cross multiply
826,398.44x = 1,240,261.98 × 427,156.28 - Step 4: Simplify right side
826,398.44x = 529,785,693,602.23 - Step 5: Solve for x
x = 529,785,693,602.23/826,398.44 - Step 6: Final answer
x = 641,077.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.