Finding the Fourth Proportional to 1,122,156.88, 1,548,586.38 and 638,753.14
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Solution
The fourth proportional to 1,122,156.88, 1,548,586.38 and 638,753.14 is: 881,484.96
Step by Step Solution
- Step 1: Write the proportion equation
1,122,156.88 : 1,548,586.38 = 638,753.14 : x - Step 2: Convert to fraction form
1,122,156.88/1,548,586.38 = 638,753.14/x - Step 3: Cross multiply
1,122,156.88x = 1,548,586.38 × 638,753.14 - Step 4: Simplify right side
1,122,156.88x = 989,164,411,727.81 - Step 5: Solve for x
x = 989,164,411,727.81/1,122,156.88 - Step 6: Final answer
x = 881,484.96
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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.