Finding the Fourth Proportional to 485,318.98, 669,790.28 and 291,790.00
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Solution
The fourth proportional to 485,318.98, 669,790.28 and 291,790.00 is: 402,700.31
Step by Step Solution
- Step 1: Write the proportion equation
485,318.98 : 669,790.28 = 291,790.00 : x - Step 2: Convert to fraction form
485,318.98/669,790.28 = 291,790.00/x - Step 3: Cross multiply
485,318.98x = 669,790.28 × 291,790.00 - Step 4: Simplify right side
485,318.98x = 195,438,100,993.30 - Step 5: Solve for x
x = 195,438,100,993.30/485,318.98 - Step 6: Final answer
x = 402,700.31
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.