Finding the Fourth Proportional to 717,324.72, 989,911.08 and 411,412.92
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Solution
The fourth proportional to 717,324.72, 989,911.08 and 411,412.92 is: 567,751.53
Step by Step Solution
- Step 1: Write the proportion equation
717,324.72 : 989,911.08 = 411,412.92 : x - Step 2: Convert to fraction form
717,324.72/989,911.08 = 411,412.92/x - Step 3: Cross multiply
717,324.72x = 989,911.08 × 411,412.92 - Step 4: Simplify right side
717,324.72x = 407,262,207,963.15 - Step 5: Solve for x
x = 407,262,207,963.15/717,324.72 - Step 6: Final answer
x = 567,751.53
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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.