Finding the Fourth Proportional to 673,831.19, 929,888.99 and 367,910.21
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Solution
The fourth proportional to 673,831.19, 929,888.99 and 367,910.21 is: 507,717.15
Step by Step Solution
- Step 1: Write the proportion equation
673,831.19 : 929,888.99 = 367,910.21 : x - Step 2: Convert to fraction form
673,831.19/929,888.99 = 367,910.21/x - Step 3: Cross multiply
673,831.19x = 929,888.99 × 367,910.21 - Step 4: Simplify right side
673,831.19x = 342,115,653,587.59 - Step 5: Solve for x
x = 342,115,653,587.59/673,831.19 - Step 6: Final answer
x = 507,717.15
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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.