Finding the Fourth Proportional to 872,454.16, 1,203,988.62 and 490,484.08
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Solution
The fourth proportional to 872,454.16, 1,203,988.62 and 490,484.08 is: 676,869.09
Step by Step Solution
- Step 1: Write the proportion equation
872,454.16 : 1,203,988.62 = 490,484.08 : x - Step 2: Convert to fraction form
872,454.16/1,203,988.62 = 490,484.08/x - Step 3: Cross multiply
872,454.16x = 1,203,988.62 × 490,484.08 - Step 4: Simplify right side
872,454.16x = 590,537,250,611.17 - Step 5: Solve for x
x = 590,537,250,611.17/872,454.16 - Step 6: Final answer
x = 676,869.09
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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.