Finding the Fourth Proportional to 1,971,007.68, 2,720,425.92 and 1,281,479.52
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Solution
The fourth proportional to 1,971,007.68, 2,720,425.92 and 1,281,479.52 is: 1,768,724.77
Step by Step Solution
- Step 1: Write the proportion equation
1,971,007.68 : 2,720,425.92 = 1,281,479.52 : x - Step 2: Convert to fraction form
1,971,007.68/2,720,425.92 = 1,281,479.52/x - Step 3: Cross multiply
1,971,007.68x = 2,720,425.92 × 1,281,479.52 - Step 4: Simplify right side
1,971,007.68x = 3,486,170,102,157.16 - Step 5: Solve for x
x = 3,486,170,102,157.16/1,971,007.68 - Step 6: Final answer
x = 1,768,724.77
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.