Finding the Fourth Proportional to 651,678.20, 977,517.30 and 439,101.80
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Solution
The fourth proportional to 651,678.20, 977,517.30 and 439,101.80 is: 658,652.70
Step by Step Solution
- Step 1: Write the proportion equation
651,678.20 : 977,517.30 = 439,101.80 : x - Step 2: Convert to fraction form
651,678.20/977,517.30 = 439,101.80/x - Step 3: Cross multiply
651,678.20x = 977,517.30 × 439,101.80 - Step 4: Simplify right side
651,678.20x = 429,229,605,961.14 - Step 5: Solve for x
x = 429,229,605,961.14/651,678.20 - Step 6: Final answer
x = 658,652.70
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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.