Finding the Fourth Proportional to 815,498.88, 1,125,220.58 and 471,211.62
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Solution
The fourth proportional to 815,498.88, 1,125,220.58 and 471,211.62 is: 650,175.03
Step by Step Solution
- Step 1: Write the proportion equation
815,498.88 : 1,125,220.58 = 471,211.62 : x - Step 2: Convert to fraction form
815,498.88/1,125,220.58 = 471,211.62/x - Step 3: Cross multiply
815,498.88x = 1,125,220.58 × 471,211.62 - Step 4: Simplify right side
815,498.88x = 530,217,012,359.14 - Step 5: Solve for x
x = 530,217,012,359.14/815,498.88 - Step 6: Final answer
x = 650,175.03
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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.