Finding the Fourth Proportional to 747,309.58, 1,121,152.12 and 214,831.58
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Solution
The fourth proportional to 747,309.58, 1,121,152.12 and 214,831.58 is: 322,301.34
Step by Step Solution
- Step 1: Write the proportion equation
747,309.58 : 1,121,152.12 = 214,831.58 : x - Step 2: Convert to fraction form
747,309.58/1,121,152.12 = 214,831.58/x - Step 3: Cross multiply
747,309.58x = 1,121,152.12 × 214,831.58 - Step 4: Simplify right side
747,309.58x = 240,858,881,359.95 - Step 5: Solve for x
x = 240,858,881,359.95/747,309.58 - Step 6: Final answer
x = 322,301.34
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.