Finding the Fourth Proportional to 427,899.36, 590,460.12 and 255,783.18
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Solution
The fourth proportional to 427,899.36, 590,460.12 and 255,783.18 is: 352,956.28
Step by Step Solution
- Step 1: Write the proportion equation
427,899.36 : 590,460.12 = 255,783.18 : x - Step 2: Convert to fraction form
427,899.36/590,460.12 = 255,783.18/x - Step 3: Cross multiply
427,899.36x = 590,460.12 × 255,783.18 - Step 4: Simplify right side
427,899.36x = 151,029,767,156.78 - Step 5: Solve for x
x = 151,029,767,156.78/427,899.36 - Step 6: Final answer
x = 352,956.28
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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.