Finding the Fourth Proportional to 430.60, 594.84 and 391
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Solution
The fourth proportional to 430.60, 594.84 and 391 is: 540.14
Step by Step Solution
- Step 1: Write the proportion equation
430.60 : 594.84 = 391 : x - Step 2: Convert to fraction form
430.60/594.84 = 391/x - Step 3: Cross multiply
430.60x = 594.84 × 391 - Step 4: Simplify right side
430.60x = 232,582.44 - Step 5: Solve for x
x = 232,582.44/430.60 - Step 6: Final answer
x = 540.14
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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.