Finding the Fourth Proportional to 490,864.20, 736,296.30 and 402,217.80
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Solution
The fourth proportional to 490,864.20, 736,296.30 and 402,217.80 is: 603,326.70
Step by Step Solution
- Step 1: Write the proportion equation
490,864.20 : 736,296.30 = 402,217.80 : x - Step 2: Convert to fraction form
490,864.20/736,296.30 = 402,217.80/x - Step 3: Cross multiply
490,864.20x = 736,296.30 × 402,217.80 - Step 4: Simplify right side
490,864.20x = 296,151,477,934.14 - Step 5: Solve for x
x = 296,151,477,934.14/490,864.20 - Step 6: Final answer
x = 603,326.70
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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.