Finding the Fourth Proportional to 2,878,061.62, 3,971,730.06 and 1,588,904.08
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Solution
The fourth proportional to 2,878,061.62, 3,971,730.06 and 1,588,904.08 is: 2,192,690.40
Step by Step Solution
- Step 1: Write the proportion equation
2,878,061.62 : 3,971,730.06 = 1,588,904.08 : x - Step 2: Convert to fraction form
2,878,061.62/3,971,730.06 = 1,588,904.08/x - Step 3: Cross multiply
2,878,061.62x = 3,971,730.06 × 1,588,904.08 - Step 4: Simplify right side
2,878,061.62x = 6,310,698,096,992.65 - Step 5: Solve for x
x = 6,310,698,096,992.65/2,878,061.62 - Step 6: Final answer
x = 2,192,690.40
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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.