Finding the Fourth Proportional to 1,069,691.80, 1,475,324.26 and 909,078.52
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Solution
The fourth proportional to 1,069,691.80, 1,475,324.26 and 909,078.52 is: 1,253,805.62
Step by Step Solution
- Step 1: Write the proportion equation
1,069,691.80 : 1,475,324.26 = 909,078.52 : x - Step 2: Convert to fraction form
1,069,691.80/1,475,324.26 = 909,078.52/x - Step 3: Cross multiply
1,069,691.80x = 1,475,324.26 × 909,078.52 - Step 4: Simplify right side
1,069,691.80x = 1,341,185,594,800.90 - Step 5: Solve for x
x = 1,341,185,594,800.90/1,069,691.80 - Step 6: Final answer
x = 1,253,805.62
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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.