Finding the Fourth Proportional to 612,750.76, 845,583.92 and 340,812.80
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Solution
The fourth proportional to 612,750.76, 845,583.92 and 340,812.80 is: 470,314.92
Step by Step Solution
- Step 1: Write the proportion equation
612,750.76 : 845,583.92 = 340,812.80 : x - Step 2: Convert to fraction form
612,750.76/845,583.92 = 340,812.80/x - Step 3: Cross multiply
612,750.76x = 845,583.92 × 340,812.80 - Step 4: Simplify right side
612,750.76x = 288,185,821,927.18 - Step 5: Solve for x
x = 288,185,821,927.18/612,750.76 - Step 6: Final answer
x = 470,314.92
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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.