Finding the Fourth Proportional to 2,219,893.21, 3,328,491.43 and 870,439.08
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Solution
The fourth proportional to 2,219,893.21, 3,328,491.43 and 870,439.08 is: 1,305,129.91
Step by Step Solution
- Step 1: Write the proportion equation
2,219,893.21 : 3,328,491.43 = 870,439.08 : x - Step 2: Convert to fraction form
2,219,893.21/3,328,491.43 = 870,439.08/x - Step 3: Cross multiply
2,219,893.21x = 3,328,491.43 × 870,439.08 - Step 4: Simplify right side
2,219,893.21x = 2,897,249,018,117.08 - Step 5: Solve for x
x = 2,897,249,018,117.08/2,219,893.21 - Step 6: Final answer
x = 1,305,129.91
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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.