Finding the Fourth Proportional to 1,487,123.99, 2,230,687.23 and 407,648.28
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Solution
The fourth proportional to 1,487,123.99, 2,230,687.23 and 407,648.28 is: 611,472.76
Step by Step Solution
- Step 1: Write the proportion equation
1,487,123.99 : 2,230,687.23 = 407,648.28 : x - Step 2: Convert to fraction form
1,487,123.99/2,230,687.23 = 407,648.28/x - Step 3: Cross multiply
1,487,123.99x = 2,230,687.23 × 407,648.28 - Step 4: Simplify right side
1,487,123.99x = 909,335,810,489.22 - Step 5: Solve for x
x = 909,335,810,489.22/1,487,123.99 - Step 6: Final answer
x = 611,472.76
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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.