Finding the Fourth Proportional to 1,221,508.84, 1,685,684.18 and 677,644.65
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Solution
The fourth proportional to 1,221,508.84, 1,685,684.18 and 677,644.65 is: 935,150.71
Step by Step Solution
- Step 1: Write the proportion equation
1,221,508.84 : 1,685,684.18 = 677,644.65 : x - Step 2: Convert to fraction form
1,221,508.84/1,685,684.18 = 677,644.65/x - Step 3: Cross multiply
1,221,508.84x = 1,685,684.18 × 677,644.65 - Step 4: Simplify right side
1,221,508.84x = 1,142,294,854,349.99 - Step 5: Solve for x
x = 1,142,294,854,349.99/1,221,508.84 - Step 6: Final answer
x = 935,150.71
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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.