Finding the Fourth Proportional to 1,423,163.60, 1,963,928.12 and 842,416.68
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Solution
The fourth proportional to 1,423,163.60, 1,963,928.12 and 842,416.68 is: 1,162,512.73
Step by Step Solution
- Step 1: Write the proportion equation
1,423,163.60 : 1,963,928.12 = 842,416.68 : x - Step 2: Convert to fraction form
1,423,163.60/1,963,928.12 = 842,416.68/x - Step 3: Cross multiply
1,423,163.60x = 1,963,928.12 × 842,416.68 - Step 4: Simplify right side
1,423,163.60x = 1,654,445,802,396.96 - Step 5: Solve for x
x = 1,654,445,802,396.96/1,423,163.60 - Step 6: Final answer
x = 1,162,512.73
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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.