Finding the Fourth Proportional to 873,463.68, 1,205,365.44 and 491,490.24
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Solution
The fourth proportional to 873,463.68, 1,205,365.44 and 491,490.24 is: 678,248.41
Step by Step Solution
- Step 1: Write the proportion equation
873,463.68 : 1,205,365.44 = 491,490.24 : x - Step 2: Convert to fraction form
873,463.68/1,205,365.44 = 491,490.24/x - Step 3: Cross multiply
873,463.68x = 1,205,365.44 × 491,490.24 - Step 4: Simplify right side
873,463.68x = 592,425,349,393.31 - Step 5: Solve for x
x = 592,425,349,393.31/873,463.68 - Step 6: Final answer
x = 678,248.41
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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.