Finding the Fourth Proportional to 391,316.93, 586,946.68 and 125,005.94
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Solution
The fourth proportional to 391,316.93, 586,946.68 and 125,005.94 is: 187,499.74
Step by Step Solution
- Step 1: Write the proportion equation
391,316.93 : 586,946.68 = 125,005.94 : x - Step 2: Convert to fraction form
391,316.93/586,946.68 = 125,005.94/x - Step 3: Cross multiply
391,316.93x = 586,946.68 × 125,005.94 - Step 4: Simplify right side
391,316.93x = 73,371,821,463.28 - Step 5: Solve for x
x = 73,371,821,463.28/391,316.93 - Step 6: Final answer
x = 187,499.74
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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.