Finding the Fourth Proportional to 1,531,421.04, 2,297,643.06 and 678,376.80
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Solution
The fourth proportional to 1,531,421.04, 2,297,643.06 and 678,376.80 is: 1,017,791.78
Step by Step Solution
- Step 1: Write the proportion equation
1,531,421.04 : 2,297,643.06 = 678,376.80 : x - Step 2: Convert to fraction form
1,531,421.04/2,297,643.06 = 678,376.80/x - Step 3: Cross multiply
1,531,421.04x = 2,297,643.06 × 678,376.80 - Step 4: Simplify right side
1,531,421.04x = 1,558,667,746,585.01 - Step 5: Solve for x
x = 1,558,667,746,585.01/1,531,421.04 - Step 6: Final answer
x = 1,017,791.78
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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.