Finding the Fourth Proportional to 409,935.48, 615,090.05 and 210,395.99
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Solution
The fourth proportional to 409,935.48, 615,090.05 and 210,395.99 is: 315,689.86
Step by Step Solution
- Step 1: Write the proportion equation
409,935.48 : 615,090.05 = 210,395.99 : x - Step 2: Convert to fraction form
409,935.48/615,090.05 = 210,395.99/x - Step 3: Cross multiply
409,935.48x = 615,090.05 × 210,395.99 - Step 4: Simplify right side
409,935.48x = 129,412,475,881.47 - Step 5: Solve for x
x = 129,412,475,881.47/409,935.48 - Step 6: Final answer
x = 315,689.86
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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.