Finding the Fourth Proportional to 4,423,699.27, 6,638,128.20 and 1,864,757.70
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Solution
The fourth proportional to 4,423,699.27, 6,638,128.20 and 1,864,757.70 is: 2,798,223.82
Step by Step Solution
- Step 1: Write the proportion equation
4,423,699.27 : 6,638,128.20 = 1,864,757.70 : x - Step 2: Convert to fraction form
4,423,699.27/6,638,128.20 = 1,864,757.70/x - Step 3: Cross multiply
4,423,699.27x = 6,638,128.20 × 1,864,757.70 - Step 4: Simplify right side
4,423,699.27x = 12,378,500,674,537.14 - Step 5: Solve for x
x = 12,378,500,674,537.14/4,423,699.27 - Step 6: Final answer
x = 2,798,223.82
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1.5x scale
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.