Finding the Fourth Proportional to 1,490,397.40, 2,235,887.70 and 637,467.40
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Solution
The fourth proportional to 1,490,397.40, 2,235,887.70 and 637,467.40 is: 956,325.82
Step by Step Solution
- Step 1: Write the proportion equation
1,490,397.40 : 2,235,887.70 = 637,467.40 : x - Step 2: Convert to fraction form
1,490,397.40/2,235,887.70 = 637,467.40/x - Step 3: Cross multiply
1,490,397.40x = 2,235,887.70 × 637,467.40 - Step 4: Simplify right side
1,490,397.40x = 1,425,305,518,810.98 - Step 5: Solve for x
x = 1,425,305,518,810.98/1,490,397.40 - Step 6: Final answer
x = 956,325.82
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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.