Finding the Fourth Proportional to 422,506.98, 633,864.35 and 122,990.15
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Solution
The fourth proportional to 422,506.98, 633,864.35 and 122,990.15 is: 184,515.47
Step by Step Solution
- Step 1: Write the proportion equation
422,506.98 : 633,864.35 = 122,990.15 : x - Step 2: Convert to fraction form
422,506.98/633,864.35 = 122,990.15/x - Step 3: Cross multiply
422,506.98x = 633,864.35 × 122,990.15 - Step 4: Simplify right side
422,506.98x = 77,959,071,486.15 - Step 5: Solve for x
x = 77,959,071,486.15/422,506.98 - Step 6: Final answer
x = 184,515.47
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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.