Finding the Fourth Proportional to 1,386,106.55, 2,079,158.65 and 521,702.99
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Solution
The fourth proportional to 1,386,106.55, 2,079,158.65 and 521,702.99 is: 782,554.04
Step by Step Solution
- Step 1: Write the proportion equation
1,386,106.55 : 2,079,158.65 = 521,702.99 : x - Step 2: Convert to fraction form
1,386,106.55/2,079,158.65 = 521,702.99/x - Step 3: Cross multiply
1,386,106.55x = 2,079,158.65 × 521,702.99 - Step 4: Simplify right side
1,386,106.55x = 1,084,703,284,389.36 - Step 5: Solve for x
x = 1,084,703,284,389.36/1,386,106.55 - Step 6: Final answer
x = 782,554.04
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.