Finding the Fourth Proportional to 518,394.06, 715,297.23 and 288,901.26
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Solution
The fourth proportional to 518,394.06, 715,297.23 and 288,901.26 is: 398,635.49
Step by Step Solution
- Step 1: Write the proportion equation
518,394.06 : 715,297.23 = 288,901.26 : x - Step 2: Convert to fraction form
518,394.06/715,297.23 = 288,901.26/x - Step 3: Cross multiply
518,394.06x = 715,297.23 × 288,901.26 - Step 4: Simplify right side
518,394.06x = 206,650,271,021.51 - Step 5: Solve for x
x = 206,650,271,021.51/518,394.06 - Step 6: Final answer
x = 398,635.49
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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.