Finding the Fourth Proportional to 1,053,805.55, 1,454,286.86 and 645,828.56
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Solution
The fourth proportional to 1,053,805.55, 1,454,286.86 and 645,828.56 is: 891,264.99
Step by Step Solution
- Step 1: Write the proportion equation
1,053,805.55 : 1,454,286.86 = 645,828.56 : x - Step 2: Convert to fraction form
1,053,805.55/1,454,286.86 = 645,828.56/x - Step 3: Cross multiply
1,053,805.55x = 1,454,286.86 × 645,828.56 - Step 4: Simplify right side
1,053,805.55x = 939,219,985,995.58 - Step 5: Solve for x
x = 939,219,985,995.58/1,053,805.55 - Step 6: Final answer
x = 891,264.99
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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.