Finding the Fourth Proportional to 747,455.30, 1,121,000.70 and 214,920.80
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Solution
The fourth proportional to 747,455.30, 1,121,000.70 and 214,920.80 is: 322,328.80
Step by Step Solution
- Step 1: Write the proportion equation
747,455.30 : 1,121,000.70 = 214,920.80 : x - Step 2: Convert to fraction form
747,455.30/1,121,000.70 = 214,920.80/x - Step 3: Cross multiply
747,455.30x = 1,121,000.70 × 214,920.80 - Step 4: Simplify right side
747,455.30x = 240,926,367,244.56 - Step 5: Solve for x
x = 240,926,367,244.56/747,455.30 - Step 6: Final answer
x = 322,328.80
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1.5x scale
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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.