Finding the Fourth Proportional to 651,320.40, 977,136.12 and 272,029.80
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Solution
The fourth proportional to 651,320.40, 977,136.12 and 272,029.80 is: 408,109.65
Step by Step Solution
- Step 1: Write the proportion equation
651,320.40 : 977,136.12 = 272,029.80 : x - Step 2: Convert to fraction form
651,320.40/977,136.12 = 272,029.80/x - Step 3: Cross multiply
651,320.40x = 977,136.12 × 272,029.80 - Step 4: Simplify right side
651,320.40x = 265,810,143,296.38 - Step 5: Solve for x
x = 265,810,143,296.38/651,320.40 - Step 6: Final answer
x = 408,109.65
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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.