Finding the Fourth Proportional to 542,985.84, 749,389.02 and 356,874.56
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Solution
The fourth proportional to 542,985.84, 749,389.02 and 356,874.56 is: 492,531.95
Step by Step Solution
- Step 1: Write the proportion equation
542,985.84 : 749,389.02 = 356,874.56 : x - Step 2: Convert to fraction form
542,985.84/749,389.02 = 356,874.56/x - Step 3: Cross multiply
542,985.84x = 749,389.02 × 356,874.56 - Step 4: Simplify right side
542,985.84x = 267,437,876,781.33 - Step 5: Solve for x
x = 267,437,876,781.33/542,985.84 - Step 6: Final answer
x = 492,531.95
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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.