Finding the Fourth Proportional to 1,136,129.86, 1,703,769.51 and 487,624.18
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Solution
The fourth proportional to 1,136,129.86, 1,703,769.51 and 487,624.18 is: 731,253.74
Step by Step Solution
- Step 1: Write the proportion equation
1,136,129.86 : 1,703,769.51 = 487,624.18 : x - Step 2: Convert to fraction form
1,136,129.86/1,703,769.51 = 487,624.18/x - Step 3: Cross multiply
1,136,129.86x = 1,703,769.51 × 487,624.18 - Step 4: Simplify right side
1,136,129.86x = 830,799,210,222.75 - Step 5: Solve for x
x = 830,799,210,222.75/1,136,129.86 - Step 6: Final answer
x = 731,253.74
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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.