Finding the Fourth Proportional to 399,603.68, 596,490.57 and 349,157.78
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Solution
The fourth proportional to 399,603.68, 596,490.57 and 349,157.78 is: 521,189.70
Step by Step Solution
- Step 1: Write the proportion equation
399,603.68 : 596,490.57 = 349,157.78 : x - Step 2: Convert to fraction form
399,603.68/596,490.57 = 349,157.78/x - Step 3: Cross multiply
399,603.68x = 596,490.57 × 349,157.78 - Step 4: Simplify right side
399,603.68x = 208,269,321,466.35 - Step 5: Solve for x
x = 208,269,321,466.35/399,603.68 - Step 6: Final answer
x = 521,189.70
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.