Finding the Fourth Proportional to 579,428.10, 869,206.95 and 180,065.70
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Solution
The fourth proportional to 579,428.10, 869,206.95 and 180,065.70 is: 270,118.69
Step by Step Solution
- Step 1: Write the proportion equation
579,428.10 : 869,206.95 = 180,065.70 : x - Step 2: Convert to fraction form
579,428.10/869,206.95 = 180,065.70/x - Step 3: Cross multiply
579,428.10x = 869,206.95 × 180,065.70 - Step 4: Simplify right side
579,428.10x = 156,514,357,896.62 - Step 5: Solve for x
x = 156,514,357,896.62/579,428.10 - Step 6: Final answer
x = 270,118.69
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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.