Finding the Fourth Proportional to 538,351.76, 742,921.74 and 296,628.74
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Solution
The fourth proportional to 538,351.76, 742,921.74 and 296,628.74 is: 409,345.63
Step by Step Solution
- Step 1: Write the proportion equation
538,351.76 : 742,921.74 = 296,628.74 : x - Step 2: Convert to fraction form
538,351.76/742,921.74 = 296,628.74/x - Step 3: Cross multiply
538,351.76x = 742,921.74 × 296,628.74 - Step 4: Simplify right side
538,351.76x = 220,371,939,654.81 - Step 5: Solve for x
x = 220,371,939,654.81/538,351.76 - Step 6: Final answer
x = 409,345.63
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.