Finding the Fourth Proportional to 499,068.83, 688,728.79 and 305,472.68
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Solution
The fourth proportional to 499,068.83, 688,728.79 and 305,472.68 is: 421,560.75
Step by Step Solution
- Step 1: Write the proportion equation
499,068.83 : 688,728.79 = 305,472.68 : x - Step 2: Convert to fraction form
499,068.83/688,728.79 = 305,472.68/x - Step 3: Cross multiply
499,068.83x = 688,728.79 × 305,472.68 - Step 4: Simplify right side
499,068.83x = 210,387,828,475.20 - Step 5: Solve for x
x = 210,387,828,475.20/499,068.83 - Step 6: Final answer
x = 421,560.75
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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.