Finding the Fourth Proportional to 945,417.55, 1,416,943.72 and 472,234.99
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Solution
The fourth proportional to 945,417.55, 1,416,943.72 and 472,234.99 is: 707,761.78
Step by Step Solution
- Step 1: Write the proportion equation
945,417.55 : 1,416,943.72 = 472,234.99 : x - Step 2: Convert to fraction form
945,417.55/1,416,943.72 = 472,234.99/x - Step 3: Cross multiply
945,417.55x = 1,416,943.72 × 472,234.99 - Step 4: Simplify right side
945,417.55x = 669,130,403,444.76 - Step 5: Solve for x
x = 669,130,403,444.76/945,417.55 - Step 6: Final answer
x = 707,761.78
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1.5x scale
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.