Finding the Fourth Proportional to 1,430,432.71, 2,145,758.95 and 405,745.45
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Solution
The fourth proportional to 1,430,432.71, 2,145,758.95 and 405,745.45 is: 608,649.35
Step by Step Solution
- Step 1: Write the proportion equation
1,430,432.71 : 2,145,758.95 = 405,745.45 : x - Step 2: Convert to fraction form
1,430,432.71/2,145,758.95 = 405,745.45/x - Step 3: Cross multiply
1,430,432.71x = 2,145,758.95 × 405,745.45 - Step 4: Simplify right side
1,430,432.71x = 870,631,937,971.96 - Step 5: Solve for x
x = 870,631,937,971.96/1,430,432.71 - Step 6: Final answer
x = 608,649.35
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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.