Finding the Third Proportional to 390,235.50 and 791,235.75
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Solution
The third proportional to 390,235.50 and 791,235.75 is: 1,604,297.95
Step by Step Solution
- Step 1: Write the proportion equation
390,235.50 : 791,235.75 = 791,235.75 : x - Step 2: Convert to fraction form
390,235.50/791,235.75 = 791,235.75/x - Step 3: Cross multiply
390,235.50x = 791,235.75 × 791,235.75 - Step 4: Simplify right side
390,235.50x = 626,054,012,078.06 - Step 5: Solve for x
x = 626,054,012,078.06/390,235.50 - Step 6: Final answer
x = 1,604,297.95
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Why These Related Problems?
These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.