Finding the Fourth Proportional to 710,549.99, 980,565.84 and 388,260.03
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Solution
The fourth proportional to 710,549.99, 980,565.84 and 388,260.03 is: 535,802.59
Step by Step Solution
- Step 1: Write the proportion equation
710,549.99 : 980,565.84 = 388,260.03 : x - Step 2: Convert to fraction form
710,549.99/980,565.84 = 388,260.03/x - Step 3: Cross multiply
710,549.99x = 980,565.84 × 388,260.03 - Step 4: Simplify right side
710,549.99x = 380,714,522,455.38 - Step 5: Solve for x
x = 380,714,522,455.38/710,549.99 - Step 6: Final answer
x = 535,802.59
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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.