Finding the Fourth Proportional to 1,125,466.64, 1,553,291.87 and 641,920.94
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Solution
The fourth proportional to 1,125,466.64, 1,553,291.87 and 641,920.94 is: 885,935.25
Step by Step Solution
- Step 1: Write the proportion equation
1,125,466.64 : 1,553,291.87 = 641,920.94 : x - Step 2: Convert to fraction form
1,125,466.64/1,553,291.87 = 641,920.94/x - Step 3: Cross multiply
1,125,466.64x = 1,553,291.87 × 641,920.94 - Step 4: Simplify right side
1,125,466.64x = 997,090,566,308.69 - Step 5: Solve for x
x = 997,090,566,308.69/1,125,466.64 - Step 6: Final answer
x = 885,935.25
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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.