Finding the Fourth Proportional to 1,539,693.12, 2,309,391.20 and 474,449.16
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Solution
The fourth proportional to 1,539,693.12, 2,309,391.20 and 474,449.16 is: 711,627.99
Step by Step Solution
- Step 1: Write the proportion equation
1,539,693.12 : 2,309,391.20 = 474,449.16 : x - Step 2: Convert to fraction form
1,539,693.12/2,309,391.20 = 474,449.16/x - Step 3: Cross multiply
1,539,693.12x = 2,309,391.20 × 474,449.16 - Step 4: Simplify right side
1,539,693.12x = 1,095,688,714,951.39 - Step 5: Solve for x
x = 1,095,688,714,951.39/1,539,693.12 - Step 6: Final answer
x = 711,627.99
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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.