Finding the Fourth Proportional to 420,967.05, 580,252.07 and 328,925.41
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Solution
The fourth proportional to 420,967.05, 580,252.07 and 328,925.41 is: 453,383.82
Step by Step Solution
- Step 1: Write the proportion equation
420,967.05 : 580,252.07 = 328,925.41 : x - Step 2: Convert to fraction form
420,967.05/580,252.07 = 328,925.41/x - Step 3: Cross multiply
420,967.05x = 580,252.07 × 328,925.41 - Step 4: Simplify right side
420,967.05x = 190,859,648,012.13 - Step 5: Solve for x
x = 190,859,648,012.13/420,967.05 - Step 6: Final answer
x = 453,383.82
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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.