Finding the Fourth Proportional to 868,444.37, 1,198,440.09 and 486,484.82
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Solution
The fourth proportional to 868,444.37, 1,198,440.09 and 486,484.82 is: 671,341.69
Step by Step Solution
- Step 1: Write the proportion equation
868,444.37 : 1,198,440.09 = 486,484.82 : x - Step 2: Convert to fraction form
868,444.37/1,198,440.09 = 486,484.82/x - Step 3: Cross multiply
868,444.37x = 1,198,440.09 × 486,484.82 - Step 4: Simplify right side
868,444.37x = 583,022,909,966.38 - Step 5: Solve for x
x = 583,022,909,966.38/868,444.37 - Step 6: Final answer
x = 671,341.69
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Double scale
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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.