Finding the Fourth Proportional to 710,230.68, 980,147.16 and 408,424.68
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Solution
The fourth proportional to 710,230.68, 980,147.16 and 408,424.68 is: 563,642.63
Step by Step Solution
- Step 1: Write the proportion equation
710,230.68 : 980,147.16 = 408,424.68 : x - Step 2: Convert to fraction form
710,230.68/980,147.16 = 408,424.68/x - Step 3: Cross multiply
710,230.68x = 980,147.16 × 408,424.68 - Step 4: Simplify right side
710,230.68x = 400,316,290,175.91 - Step 5: Solve for x
x = 400,316,290,175.91/710,230.68 - Step 6: Final answer
x = 563,642.63
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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.