Finding the Fourth Proportional to 784,122.98, 1,081,690.74 and 512,349.75
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Solution
The fourth proportional to 784,122.98, 1,081,690.74 and 512,349.75 is: 706,781.97
Step by Step Solution
- Step 1: Write the proportion equation
784,122.98 : 1,081,690.74 = 512,349.75 : x - Step 2: Convert to fraction form
784,122.98/1,081,690.74 = 512,349.75/x - Step 3: Cross multiply
784,122.98x = 1,081,690.74 × 512,349.75 - Step 4: Simplify right side
784,122.98x = 554,203,980,216.32 - Step 5: Solve for x
x = 554,203,980,216.32/784,122.98 - Step 6: Final answer
x = 706,781.97
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1.5x scale
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.