Finding the Fourth Proportional to 674,423.84, 931,138.80 and 432,810.56
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Solution
The fourth proportional to 674,423.84, 931,138.80 and 432,810.56 is: 597,557.03
Step by Step Solution
- Step 1: Write the proportion equation
674,423.84 : 931,138.80 = 432,810.56 : x - Step 2: Convert to fraction form
674,423.84/931,138.80 = 432,810.56/x - Step 3: Cross multiply
674,423.84x = 931,138.80 × 432,810.56 - Step 4: Simplify right side
674,423.84x = 403,006,705,465.73 - Step 5: Solve for x
x = 403,006,705,465.73/674,423.84 - Step 6: Final answer
x = 597,557.03
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1.5x scale
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.