Finding the Fourth Proportional to 420,409.28, 579,179.04 and 292,854.08
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Solution
The fourth proportional to 420,409.28, 579,179.04 and 292,854.08 is: 403,451.95
Step by Step Solution
- Step 1: Write the proportion equation
420,409.28 : 579,179.04 = 292,854.08 : x - Step 2: Convert to fraction form
420,409.28/579,179.04 = 292,854.08/x - Step 3: Cross multiply
420,409.28x = 579,179.04 × 292,854.08 - Step 4: Simplify right side
420,409.28x = 169,614,944,914.48 - Step 5: Solve for x
x = 169,614,944,914.48/420,409.28 - Step 6: Final answer
x = 403,451.95
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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.