Finding the Fourth Proportional to 561,479.19, 774,858.20 and 306,834.63
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Solution
The fourth proportional to 561,479.19, 774,858.20 and 306,834.63 is: 423,441.03
Step by Step Solution
- Step 1: Write the proportion equation
561,479.19 : 774,858.20 = 306,834.63 : x - Step 2: Convert to fraction form
561,479.19/774,858.20 = 306,834.63/x - Step 3: Cross multiply
561,479.19x = 774,858.20 × 306,834.63 - Step 4: Simplify right side
561,479.19x = 237,753,327,565.29 - Step 5: Solve for x
x = 237,753,327,565.29/561,479.19 - Step 6: Final answer
x = 423,441.03
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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.