Finding the Fourth Proportional to 1,071,817.10, 1,479,053.28 and 636,253.07
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Solution
The fourth proportional to 1,071,817.10, 1,479,053.28 and 636,253.07 is: 877,996.99
Step by Step Solution
- Step 1: Write the proportion equation
1,071,817.10 : 1,479,053.28 = 636,253.07 : x - Step 2: Convert to fraction form
1,071,817.10/1,479,053.28 = 636,253.07/x - Step 3: Cross multiply
1,071,817.10x = 1,479,053.28 × 636,253.07 - Step 4: Simplify right side
1,071,817.10x = 941,052,182,698.30 - Step 5: Solve for x
x = 941,052,182,698.30/1,071,817.10 - Step 6: Final answer
x = 877,996.99
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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.