Finding the Fourth Proportional to 1,989,926.30, 2,746,107.39 and 1,130,533.71
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Solution
The fourth proportional to 1,989,926.30, 2,746,107.39 and 1,130,533.71 is: 1,560,141.69
Step by Step Solution
- Step 1: Write the proportion equation
1,989,926.30 : 2,746,107.39 = 1,130,533.71 : x - Step 2: Convert to fraction form
1,989,926.30/2,746,107.39 = 1,130,533.71/x - Step 3: Cross multiply
1,989,926.30x = 2,746,107.39 × 1,130,533.71 - Step 4: Simplify right side
1,989,926.30x = 3,104,566,975,675.12 - Step 5: Solve for x
x = 3,104,566,975,675.12/1,989,926.30 - Step 6: Final answer
x = 1,560,141.69
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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.