Finding the Fourth Proportional to 1,125,584.36, 1,688,398.14 and 415,246.76
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Solution
The fourth proportional to 1,125,584.36, 1,688,398.14 and 415,246.76 is: 622,878.11
Step by Step Solution
- Step 1: Write the proportion equation
1,125,584.36 : 1,688,398.14 = 415,246.76 : x - Step 2: Convert to fraction form
1,125,584.36/1,688,398.14 = 415,246.76/x - Step 3: Cross multiply
1,125,584.36x = 1,688,398.14 × 415,246.76 - Step 4: Simplify right side
1,125,584.36x = 701,101,857,225.03 - Step 5: Solve for x
x = 701,101,857,225.03/1,125,584.36 - Step 6: Final answer
x = 622,878.11
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.