Finding the Fourth Proportional to 865,624.70, 1,298,437.05 and 492,376.70
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Solution
The fourth proportional to 865,624.70, 1,298,437.05 and 492,376.70 is: 738,565.05
Step by Step Solution
- Step 1: Write the proportion equation
865,624.70 : 1,298,437.05 = 492,376.70 : x - Step 2: Convert to fraction form
865,624.70/1,298,437.05 = 492,376.70/x - Step 3: Cross multiply
865,624.70x = 1,298,437.05 × 492,376.70 - Step 4: Simplify right side
865,624.70x = 639,320,149,836.74 - Step 5: Solve for x
x = 639,320,149,836.74/865,624.70 - Step 6: Final answer
x = 738,565.05
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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.