Finding the Fourth Proportional to 542,670.84, 813,993.57 and 143,339.49
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Solution
The fourth proportional to 542,670.84, 813,993.57 and 143,339.49 is: 215,005.88
Step by Step Solution
- Step 1: Write the proportion equation
542,670.84 : 813,993.57 = 143,339.49 : x - Step 2: Convert to fraction form
542,670.84/813,993.57 = 143,339.49/x - Step 3: Cross multiply
542,670.84x = 813,993.57 × 143,339.49 - Step 4: Simplify right side
542,670.84x = 116,677,423,187.08 - Step 5: Solve for x
x = 116,677,423,187.08/542,670.84 - Step 6: Final answer
x = 215,005.88
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.