Finding the Fourth Proportional to 1,425,689.48, 2,137,194.70 and 478,395.88
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Solution
The fourth proportional to 1,425,689.48, 2,137,194.70 and 478,395.88 is: 717,144.34
Step by Step Solution
- Step 1: Write the proportion equation
1,425,689.48 : 2,137,194.70 = 478,395.88 : x - Step 2: Convert to fraction form
1,425,689.48/2,137,194.70 = 478,395.88/x - Step 3: Cross multiply
1,425,689.48x = 2,137,194.70 × 478,395.88 - Step 4: Simplify right side
1,425,689.48x = 1,022,425,139,237.84 - Step 5: Solve for x
x = 1,022,425,139,237.84/1,425,689.48 - Step 6: Final answer
x = 717,144.34
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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.