Finding the Fourth Proportional to 628,552.76, 867,386.16 and 342,066.70
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Solution
The fourth proportional to 628,552.76, 867,386.16 and 342,066.70 is: 472,042.99
Step by Step Solution
- Step 1: Write the proportion equation
628,552.76 : 867,386.16 = 342,066.70 : x - Step 2: Convert to fraction form
628,552.76/867,386.16 = 342,066.70/x - Step 3: Cross multiply
628,552.76x = 867,386.16 × 342,066.70 - Step 4: Simplify right side
628,552.76x = 296,703,921,376.87 - Step 5: Solve for x
x = 296,703,921,376.87/628,552.76 - Step 6: Final answer
x = 472,042.99
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1.5x scale
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.