Finding the Fourth Proportional to 851,995.70, 1,175,811.12 and 489,536.90
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Solution
The fourth proportional to 851,995.70, 1,175,811.12 and 489,536.90 is: 675,593.70
Step by Step Solution
- Step 1: Write the proportion equation
851,995.70 : 1,175,811.12 = 489,536.90 : x - Step 2: Convert to fraction form
851,995.70/1,175,811.12 = 489,536.90/x - Step 3: Cross multiply
851,995.70x = 1,175,811.12 × 489,536.90 - Step 4: Simplify right side
851,995.70x = 575,602,930,670.33 - Step 5: Solve for x
x = 575,602,930,670.33/851,995.70 - Step 6: Final answer
x = 675,593.70
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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.