Finding the Fourth Proportional to 5,249,464.80, 7,874,197.20 and 1,260,376.80
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Solution
The fourth proportional to 5,249,464.80, 7,874,197.20 and 1,260,376.80 is: 1,890,565.20
Step by Step Solution
- Step 1: Write the proportion equation
5,249,464.80 : 7,874,197.20 = 1,260,376.80 : x - Step 2: Convert to fraction form
5,249,464.80/7,874,197.20 = 1,260,376.80/x - Step 3: Cross multiply
5,249,464.80x = 7,874,197.20 × 1,260,376.80 - Step 4: Simplify right side
5,249,464.80x = 9,924,455,469,504.96 - Step 5: Solve for x
x = 9,924,455,469,504.96/5,249,464.80 - Step 6: Final answer
x = 1,890,565.20
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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.