Finding the Fourth Proportional to 873,674.53, 1,205,709.65 and 491,726.05
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Solution
The fourth proportional to 873,674.53, 1,205,709.65 and 491,726.05 is: 678,603.79
Step by Step Solution
- Step 1: Write the proportion equation
873,674.53 : 1,205,709.65 = 491,726.05 : x - Step 2: Convert to fraction form
873,674.53/1,205,709.65 = 491,726.05/x - Step 3: Cross multiply
873,674.53x = 1,205,709.65 × 491,726.05 - Step 4: Simplify right side
873,674.53x = 592,878,843,641.38 - Step 5: Solve for x
x = 592,878,843,641.38/873,674.53 - Step 6: Final answer
x = 678,603.79
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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.