Finding the Fourth Proportional to 390,316.47, 585,349.29 and 124,014.75
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Solution
The fourth proportional to 390,316.47, 585,349.29 and 124,014.75 is: 185,982.28
Step by Step Solution
- Step 1: Write the proportion equation
390,316.47 : 585,349.29 = 124,014.75 : x - Step 2: Convert to fraction form
390,316.47/585,349.29 = 124,014.75/x - Step 3: Cross multiply
390,316.47x = 585,349.29 × 124,014.75 - Step 4: Simplify right side
390,316.47x = 72,591,945,862.03 - Step 5: Solve for x
x = 72,591,945,862.03/390,316.47 - Step 6: Final answer
x = 185,982.28
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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.