Finding the Fourth Proportional to 390,769.59, 586,143.44 and 124,546.08
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Solution
The fourth proportional to 390,769.59, 586,143.44 and 124,546.08 is: 186,815.63
Step by Step Solution
- Step 1: Write the proportion equation
390,769.59 : 586,143.44 = 124,546.08 : x - Step 2: Convert to fraction form
390,769.59/586,143.44 = 124,546.08/x - Step 3: Cross multiply
390,769.59x = 586,143.44 × 124,546.08 - Step 4: Simplify right side
390,769.59x = 73,001,864,839.00 - Step 5: Solve for x
x = 73,001,864,839.00/390,769.59 - Step 6: Final answer
x = 186,815.63
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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.