Finding the Fourth Proportional to 402,990.36, 604,463.64 and 122,485.72
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Solution
The fourth proportional to 402,990.36, 604,463.64 and 122,485.72 is: 183,721.92
Step by Step Solution
- Step 1: Write the proportion equation
402,990.36 : 604,463.64 = 122,485.72 : x - Step 2: Convert to fraction form
402,990.36/604,463.64 = 122,485.72/x - Step 3: Cross multiply
402,990.36x = 604,463.64 × 122,485.72 - Step 4: Simplify right side
402,990.36x = 74,038,164,159.22 - Step 5: Solve for x
x = 74,038,164,159.22/402,990.36 - Step 6: Final answer
x = 183,721.92
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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.