Finding the Fourth Proportional to 462,637.36, 638,801.40 and 355,036.96
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Solution
The fourth proportional to 462,637.36, 638,801.40 and 355,036.96 is: 490,228.69
Step by Step Solution
- Step 1: Write the proportion equation
462,637.36 : 638,801.40 = 355,036.96 : x - Step 2: Convert to fraction form
462,637.36/638,801.40 = 355,036.96/x - Step 3: Cross multiply
462,637.36x = 638,801.40 × 355,036.96 - Step 4: Simplify right side
462,637.36x = 226,798,107,099.74 - Step 5: Solve for x
x = 226,798,107,099.74/462,637.36 - Step 6: Final answer
x = 490,228.69
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1.5x scale
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.