Finding the Fourth Proportional to 397,829.80, 596,744.70 and 319,097.80
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Solution
The fourth proportional to 397,829.80, 596,744.70 and 319,097.80 is: 478,646.70
Step by Step Solution
- Step 1: Write the proportion equation
397,829.80 : 596,744.70 = 319,097.80 : x - Step 2: Convert to fraction form
397,829.80/596,744.70 = 319,097.80/x - Step 3: Cross multiply
397,829.80x = 596,744.70 × 319,097.80 - Step 4: Simplify right side
397,829.80x = 190,419,920,931.66 - Step 5: Solve for x
x = 190,419,920,931.66/397,829.80 - Step 6: Final answer
x = 478,646.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.