Finding the Fourth Proportional to 1,731,126.68, 2,389,621.52 and 1,549,518.20
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Solution
The fourth proportional to 1,731,126.68, 2,389,621.52 and 1,549,518.20 is: 2,138,931.88
Step by Step Solution
- Step 1: Write the proportion equation
1,731,126.68 : 2,389,621.52 = 1,549,518.20 : x - Step 2: Convert to fraction form
1,731,126.68/2,389,621.52 = 1,549,518.20/x - Step 3: Cross multiply
1,731,126.68x = 2,389,621.52 × 1,549,518.20 - Step 4: Simplify right side
1,731,126.68x = 3,702,762,036,351.66 - Step 5: Solve for x
x = 3,702,762,036,351.66/1,731,126.68 - Step 6: Final answer
x = 2,138,931.88
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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.