Finding the Fourth Proportional to 665,616.80, 998,554.80 and 286,536.80
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Solution
The fourth proportional to 665,616.80, 998,554.80 and 286,536.80 is: 429,860.99
Step by Step Solution
- Step 1: Write the proportion equation
665,616.80 : 998,554.80 = 286,536.80 : x - Step 2: Convert to fraction form
665,616.80/998,554.80 = 286,536.80/x - Step 3: Cross multiply
665,616.80x = 998,554.80 × 286,536.80 - Step 4: Simplify right side
665,616.80x = 286,122,697,016.64 - Step 5: Solve for x
x = 286,122,697,016.64/665,616.80 - Step 6: Final answer
x = 429,860.99
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1.5x scale
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.