Finding the Fourth Proportional to 1,221,130.84, 1,685,264 and 677,441.68
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Solution
The fourth proportional to 1,221,130.84, 1,685,264 and 677,441.68 is: 934,926.90
Step by Step Solution
- Step 1: Write the proportion equation
1,221,130.84 : 1,685,264 = 677,441.68 : x - Step 2: Convert to fraction form
1,221,130.84/1,685,264 = 677,441.68/x - Step 3: Cross multiply
1,221,130.84x = 1,685,264 × 677,441.68 - Step 4: Simplify right side
1,221,130.84x = 1,141,668,075,403.52 - Step 5: Solve for x
x = 1,141,668,075,403.52/1,221,130.84 - Step 6: Final answer
x = 934,926.90
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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.