Finding the Fourth Proportional to 2,515,900.20, 3,471,946.47 and 1,369,985.10
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Solution
The fourth proportional to 2,515,900.20, 3,471,946.47 and 1,369,985.10 is: 1,890,581.72
Step by Step Solution
- Step 1: Write the proportion equation
2,515,900.20 : 3,471,946.47 = 1,369,985.10 : x - Step 2: Convert to fraction form
2,515,900.20/3,471,946.47 = 1,369,985.10/x - Step 3: Cross multiply
2,515,900.20x = 3,471,946.47 × 1,369,985.10 - Step 4: Simplify right side
2,515,900.20x = 4,756,514,931,897.60 - Step 5: Solve for x
x = 4,756,514,931,897.60/2,515,900.20 - Step 6: Final answer
x = 1,890,581.72
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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.