Finding the Fourth Proportional to 583,218.19, 874,827.29 and 139,986.19
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Solution
The fourth proportional to 583,218.19, 874,827.29 and 139,986.19 is: 209,979.28
Step by Step Solution
- Step 1: Write the proportion equation
583,218.19 : 874,827.29 = 139,986.19 : x - Step 2: Convert to fraction form
583,218.19/874,827.29 = 139,986.19/x - Step 3: Cross multiply
583,218.19x = 874,827.29 × 139,986.19 - Step 4: Simplify right side
583,218.19x = 122,463,737,398.02 - Step 5: Solve for x
x = 122,463,737,398.02/583,218.19 - Step 6: Final answer
x = 209,979.28
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.