Finding the Fourth Proportional to 2,518,630.60, 3,779,062.64 and 1,320,266.92
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Solution
The fourth proportional to 2,518,630.60, 3,779,062.64 and 1,320,266.92 is: 1,980,985.78
Step by Step Solution
- Step 1: Write the proportion equation
2,518,630.60 : 3,779,062.64 = 1,320,266.92 : x - Step 2: Convert to fraction form
2,518,630.60/3,779,062.64 = 1,320,266.92/x - Step 3: Cross multiply
2,518,630.60x = 3,779,062.64 × 1,320,266.92 - Step 4: Simplify right side
2,518,630.60x = 4,989,371,392,199.87 - Step 5: Solve for x
x = 4,989,371,392,199.87/2,518,630.60 - Step 6: Final answer
x = 1,980,985.78
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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.