Finding the Fourth Proportional to 1,125,359.58, 1,553,078.79 and 742,722.06
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Solution
The fourth proportional to 1,125,359.58, 1,553,078.79 and 742,722.06 is: 1,025,010.94
Step by Step Solution
- Step 1: Write the proportion equation
1,125,359.58 : 1,553,078.79 = 742,722.06 : x - Step 2: Convert to fraction form
1,125,359.58/1,553,078.79 = 742,722.06/x - Step 3: Cross multiply
1,125,359.58x = 1,553,078.79 × 742,722.06 - Step 4: Simplify right side
1,125,359.58x = 1,153,505,878,251.11 - Step 5: Solve for x
x = 1,153,505,878,251.11/1,125,359.58 - Step 6: Final answer
x = 1,025,010.94
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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.