Finding the Fourth Proportional to 4,239,015.20, 6,358,911.60 and 1,399,133.60
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Solution
The fourth proportional to 4,239,015.20, 6,358,911.60 and 1,399,133.60 is: 2,098,828.73
Step by Step Solution
- Step 1: Write the proportion equation
4,239,015.20 : 6,358,911.60 = 1,399,133.60 : x - Step 2: Convert to fraction form
4,239,015.20/6,358,911.60 = 1,399,133.60/x - Step 3: Cross multiply
4,239,015.20x = 6,358,911.60 × 1,399,133.60 - Step 4: Simplify right side
4,239,015.20x = 8,896,966,878,989.76 - Step 5: Solve for x
x = 8,896,966,878,989.76/4,239,015.20 - Step 6: Final answer
x = 2,098,828.73
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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.