Finding the Fourth Proportional to 855,607.20, 1,283,410.80 and 814,135.20
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Solution
The fourth proportional to 855,607.20, 1,283,410.80 and 814,135.20 is: 1,221,202.80
Step by Step Solution
- Step 1: Write the proportion equation
855,607.20 : 1,283,410.80 = 814,135.20 : x - Step 2: Convert to fraction form
855,607.20/1,283,410.80 = 814,135.20/x - Step 3: Cross multiply
855,607.20x = 1,283,410.80 × 814,135.20 - Step 4: Simplify right side
855,607.20x = 1,044,869,908,340.16 - Step 5: Solve for x
x = 1,044,869,908,340.16/855,607.20 - Step 6: Final answer
x = 1,221,202.80
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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.