Finding the Fourth Proportional to 2,857,660.21, 4,287,237.26 and 1,658,429.71
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Solution
The fourth proportional to 2,857,660.21, 4,287,237.26 and 1,658,429.71 is: 2,488,078.05
Step by Step Solution
- Step 1: Write the proportion equation
2,857,660.21 : 4,287,237.26 = 1,658,429.71 : x - Step 2: Convert to fraction form
2,857,660.21/4,287,237.26 = 1,658,429.71/x - Step 3: Cross multiply
2,857,660.21x = 4,287,237.26 × 1,658,429.71 - Step 4: Simplify right side
2,857,660.21x = 7,110,081,645,802.99 - Step 5: Solve for x
x = 7,110,081,645,802.99/2,857,660.21 - Step 6: Final answer
x = 2,488,078.05
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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.