Finding the Fourth Proportional to 1,989,752.18, 2,745,078.53 and 1,224,477.14
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Solution
The fourth proportional to 1,989,752.18, 2,745,078.53 and 1,224,477.14 is: 1,689,298.76
Step by Step Solution
- Step 1: Write the proportion equation
1,989,752.18 : 2,745,078.53 = 1,224,477.14 : x - Step 2: Convert to fraction form
1,989,752.18/2,745,078.53 = 1,224,477.14/x - Step 3: Cross multiply
1,989,752.18x = 2,745,078.53 × 1,224,477.14 - Step 4: Simplify right side
1,989,752.18x = 3,361,285,887,642.03 - Step 5: Solve for x
x = 3,361,285,887,642.03/1,989,752.18 - Step 6: Final answer
x = 1,689,298.76
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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.