Finding the Fourth Proportional to 1,123,497.74, 1,550,315.48 and 640,034.07
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Solution
The fourth proportional to 1,123,497.74, 1,550,315.48 and 640,034.07 is: 883,183.55
Step by Step Solution
- Step 1: Write the proportion equation
1,123,497.74 : 1,550,315.48 = 640,034.07 : x - Step 2: Convert to fraction form
1,123,497.74/1,550,315.48 = 640,034.07/x - Step 3: Cross multiply
1,123,497.74x = 1,550,315.48 × 640,034.07 - Step 4: Simplify right side
1,123,497.74x = 992,254,723,248.23 - Step 5: Solve for x
x = 992,254,723,248.23/1,123,497.74 - Step 6: Final answer
x = 883,183.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.