Finding the Fourth Proportional to 717,201.54, 989,718.75 and 411,329.34
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Solution
The fourth proportional to 717,201.54, 989,718.75 and 411,329.34 is: 567,623.38
Step by Step Solution
- Step 1: Write the proportion equation
717,201.54 : 989,718.75 = 411,329.34 : x - Step 2: Convert to fraction form
717,201.54/989,718.75 = 411,329.34/x - Step 3: Cross multiply
717,201.54x = 989,718.75 × 411,329.34 - Step 4: Simplify right side
717,201.54x = 407,100,360,223.13 - Step 5: Solve for x
x = 407,100,360,223.13/717,201.54 - Step 6: Final answer
x = 567,623.38
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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.