Finding the Fourth Proportional to 354,345.84, 530,993.68 and 291,611.75
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Solution
The fourth proportional to 354,345.84, 530,993.68 and 291,611.75 is: 436,985.50
Step by Step Solution
- Step 1: Write the proportion equation
354,345.84 : 530,993.68 = 291,611.75 : x - Step 2: Convert to fraction form
354,345.84/530,993.68 = 291,611.75/x - Step 3: Cross multiply
354,345.84x = 530,993.68 × 291,611.75 - Step 4: Simplify right side
354,345.84x = 154,843,992,879.74 - Step 5: Solve for x
x = 154,843,992,879.74/354,345.84 - Step 6: Final answer
x = 436,985.50
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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.