Finding the Fourth Proportional to 1,609,778.16, 2,221,009.47 and 964,963.08
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Solution
The fourth proportional to 1,609,778.16, 2,221,009.47 and 964,963.08 is: 1,331,358.69
Step by Step Solution
- Step 1: Write the proportion equation
1,609,778.16 : 2,221,009.47 = 964,963.08 : x - Step 2: Convert to fraction form
1,609,778.16/2,221,009.47 = 964,963.08/x - Step 3: Cross multiply
1,609,778.16x = 2,221,009.47 × 964,963.08 - Step 4: Simplify right side
1,609,778.16x = 2,143,192,138,880.37 - Step 5: Solve for x
x = 2,143,192,138,880.37/1,609,778.16 - Step 6: Final answer
x = 1,331,358.69
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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.