Finding the Fourth Proportional to 873,807.42, 1,205,777.41 and 486,593.58
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Solution
The fourth proportional to 873,807.42, 1,205,777.41 and 486,593.58 is: 671,456.36
Step by Step Solution
- Step 1: Write the proportion equation
873,807.42 : 1,205,777.41 = 486,593.58 : x - Step 2: Convert to fraction form
873,807.42/1,205,777.41 = 486,593.58/x - Step 3: Cross multiply
873,807.42x = 1,205,777.41 × 486,593.58 - Step 4: Simplify right side
873,807.42x = 586,723,545,398.54 - Step 5: Solve for x
x = 586,723,545,398.54/873,807.42 - Step 6: Final answer
x = 671,456.36
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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.