Finding the Fourth Proportional to 1,639,781.36, 2,457,359.96 and 774,292.85
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Solution
The fourth proportional to 1,639,781.36, 2,457,359.96 and 774,292.85 is: 1,160,347.52
Step by Step Solution
- Step 1: Write the proportion equation
1,639,781.36 : 2,457,359.96 = 774,292.85 : x - Step 2: Convert to fraction form
1,639,781.36/2,457,359.96 = 774,292.85/x - Step 3: Cross multiply
1,639,781.36x = 2,457,359.96 × 774,292.85 - Step 4: Simplify right side
1,639,781.36x = 1,902,716,232,681.75 - Step 5: Solve for x
x = 1,902,716,232,681.75/1,639,781.36 - Step 6: Final answer
x = 1,160,347.52
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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.