Finding the Fourth Proportional to 564,109.71, 778,481.92 and 346,209.18
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Solution
The fourth proportional to 564,109.71, 778,481.92 and 346,209.18 is: 477,775.12
Step by Step Solution
- Step 1: Write the proportion equation
564,109.71 : 778,481.92 = 346,209.18 : x - Step 2: Convert to fraction form
564,109.71/778,481.92 = 346,209.18/x - Step 3: Cross multiply
564,109.71x = 778,481.92 × 346,209.18 - Step 4: Simplify right side
564,109.71x = 269,517,587,168.03 - Step 5: Solve for x
x = 269,517,587,168.03/564,109.71 - Step 6: Final answer
x = 477,775.12
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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.