Finding the Fourth Proportional to 875,176.80, 1,207,968.70 and 570,013.62
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Solution
The fourth proportional to 875,176.80, 1,207,968.70 and 570,013.62 is: 786,765.16
Step by Step Solution
- Step 1: Write the proportion equation
875,176.80 : 1,207,968.70 = 570,013.62 : x - Step 2: Convert to fraction form
875,176.80/1,207,968.70 = 570,013.62/x - Step 3: Cross multiply
875,176.80x = 1,207,968.70 × 570,013.62 - Step 4: Simplify right side
875,176.80x = 688,558,611,533.69 - Step 5: Solve for x
x = 688,558,611,533.69/875,176.80 - Step 6: Final answer
x = 786,765.16
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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.