Finding the Fourth Proportional to 1,010,429.50, 1,394,392.84 and 557,720.62
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Solution
The fourth proportional to 1,010,429.50, 1,394,392.84 and 557,720.62 is: 769,654.53
Step by Step Solution
- Step 1: Write the proportion equation
1,010,429.50 : 1,394,392.84 = 557,720.62 : x - Step 2: Convert to fraction form
1,010,429.50/1,394,392.84 = 557,720.62/x - Step 3: Cross multiply
1,010,429.50x = 1,394,392.84 × 557,720.62 - Step 4: Simplify right side
1,010,429.50x = 777,681,639,248.36 - Step 5: Solve for x
x = 777,681,639,248.36/1,010,429.50 - Step 6: Final answer
x = 769,654.53
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1.5x scale
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.