Finding the Fourth Proportional to 623,378.76, 859,863.78 and 432,322.44
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Solution
The fourth proportional to 623,378.76, 859,863.78 and 432,322.44 is: 596,328.32
Step by Step Solution
- Step 1: Write the proportion equation
623,378.76 : 859,863.78 = 432,322.44 : x - Step 2: Convert to fraction form
623,378.76/859,863.78 = 432,322.44/x - Step 3: Cross multiply
623,378.76x = 859,863.78 × 432,322.44 - Step 4: Simplify right side
623,378.76x = 371,738,407,437.22 - Step 5: Solve for x
x = 371,738,407,437.22/623,378.76 - Step 6: Final answer
x = 596,328.32
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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.