Finding the Fourth Proportional to 1,790,291.21, 2,470,656.29 and 1,267,937.63
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Solution
The fourth proportional to 1,790,291.21, 2,470,656.29 and 1,267,937.63 is: 1,749,792.47
Step by Step Solution
- Step 1: Write the proportion equation
1,790,291.21 : 2,470,656.29 = 1,267,937.63 : x - Step 2: Convert to fraction form
1,790,291.21/2,470,656.29 = 1,267,937.63/x - Step 3: Cross multiply
1,790,291.21x = 2,470,656.29 × 1,267,937.63 - Step 4: Simplify right side
1,790,291.21x = 3,132,638,080,887.19 - Step 5: Solve for x
x = 3,132,638,080,887.19/1,790,291.21 - Step 6: Final answer
x = 1,749,792.47
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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.