Finding the Fourth Proportional to 314,719.80, 472,079.70 and 283,615.80
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Solution
The fourth proportional to 314,719.80, 472,079.70 and 283,615.80 is: 425,423.70
Step by Step Solution
- Step 1: Write the proportion equation
314,719.80 : 472,079.70 = 283,615.80 : x - Step 2: Convert to fraction form
314,719.80/472,079.70 = 283,615.80/x - Step 3: Cross multiply
314,719.80x = 472,079.70 × 283,615.80 - Step 4: Simplify right side
314,719.80x = 133,889,261,779.26 - Step 5: Solve for x
x = 133,889,261,779.26/314,719.80 - Step 6: Final answer
x = 425,423.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.