Finding the Fourth Proportional to 538,386.24, 742,963.68 and 312,052.80
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Solution
The fourth proportional to 538,386.24, 742,963.68 and 312,052.80 is: 430,627.46
Step by Step Solution
- Step 1: Write the proportion equation
538,386.24 : 742,963.68 = 312,052.80 : x - Step 2: Convert to fraction form
538,386.24/742,963.68 = 312,052.80/x - Step 3: Cross multiply
538,386.24x = 742,963.68 × 312,052.80 - Step 4: Simplify right side
538,386.24x = 231,843,896,642.30 - Step 5: Solve for x
x = 231,843,896,642.30/538,386.24 - Step 6: Final answer
x = 430,627.46
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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.