Finding the Fourth Proportional to 402,705.70, 604,252.95 and 284,121.70
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Solution
The fourth proportional to 402,705.70, 604,252.95 and 284,121.70 is: 426,319.71
Step by Step Solution
- Step 1: Write the proportion equation
402,705.70 : 604,252.95 = 284,121.70 : x - Step 2: Convert to fraction form
402,705.70/604,252.95 = 284,121.70/x - Step 3: Cross multiply
402,705.70x = 604,252.95 × 284,121.70 - Step 4: Simplify right side
402,705.70x = 171,681,375,384.02 - Step 5: Solve for x
x = 171,681,375,384.02/402,705.70 - Step 6: Final answer
x = 426,319.71
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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.