Finding the Fourth Proportional to 390,600.68, 538,730.87 and 336,242.12
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Solution
The fourth proportional to 390,600.68, 538,730.87 and 336,242.12 is: 463,757.53
Step by Step Solution
- Step 1: Write the proportion equation
390,600.68 : 538,730.87 = 336,242.12 : x - Step 2: Convert to fraction form
390,600.68/538,730.87 = 336,242.12/x - Step 3: Cross multiply
390,600.68x = 538,730.87 × 336,242.12 - Step 4: Simplify right side
390,600.68x = 181,144,005,463.38 - Step 5: Solve for x
x = 181,144,005,463.38/390,600.68 - Step 6: Final answer
x = 463,757.53
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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.