Finding the Fourth Proportional to 538,158.12, 742,654.76 and 296,435.09
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Solution
The fourth proportional to 538,158.12, 742,654.76 and 296,435.09 is: 409,078.52
Step by Step Solution
- Step 1: Write the proportion equation
538,158.12 : 742,654.76 = 296,435.09 : x - Step 2: Convert to fraction form
538,158.12/742,654.76 = 296,435.09/x - Step 3: Cross multiply
538,158.12x = 742,654.76 × 296,435.09 - Step 4: Simplify right side
538,158.12x = 220,148,925,424.08 - Step 5: Solve for x
x = 220,148,925,424.08/538,158.12 - Step 6: Final answer
x = 409,078.52
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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.