Finding the Fourth Proportional to 2,480,396.48, 3,420,595.68 and 1,621,692.80
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Solution
The fourth proportional to 2,480,396.48, 3,420,595.68 and 1,621,692.80 is: 2,236,398.67
Step by Step Solution
- Step 1: Write the proportion equation
2,480,396.48 : 3,420,595.68 = 1,621,692.80 : x - Step 2: Convert to fraction form
2,480,396.48/3,420,595.68 = 1,621,692.80/x - Step 3: Cross multiply
2,480,396.48x = 3,420,595.68 × 1,621,692.80 - Step 4: Simplify right side
2,480,396.48x = 5,547,155,385,967.10 - Step 5: Solve for x
x = 5,547,155,385,967.10/2,480,396.48 - Step 6: Final answer
x = 2,236,398.67
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.