Finding the Fourth Proportional to 1,206,488.12, 1,664,536.91 and 771,160.10
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Solution
The fourth proportional to 1,206,488.12, 1,664,536.91 and 771,160.10 is: 1,063,934.59
Step by Step Solution
- Step 1: Write the proportion equation
1,206,488.12 : 1,664,536.91 = 771,160.10 : x - Step 2: Convert to fraction form
1,206,488.12/1,664,536.91 = 771,160.10/x - Step 3: Cross multiply
1,206,488.12x = 1,664,536.91 × 771,160.10 - Step 4: Simplify right side
1,206,488.12x = 1,283,624,437,790.81 - Step 5: Solve for x
x = 1,283,624,437,790.81/1,206,488.12 - Step 6: Final answer
x = 1,063,934.59
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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.