Finding the Fourth Proportional to 1,420,183.48, 2,130,318.96 and 621,053.68
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Solution
The fourth proportional to 1,420,183.48, 2,130,318.96 and 621,053.68 is: 931,599.65
Step by Step Solution
- Step 1: Write the proportion equation
1,420,183.48 : 2,130,318.96 = 621,053.68 : x - Step 2: Convert to fraction form
1,420,183.48/2,130,318.96 = 621,053.68/x - Step 3: Cross multiply
1,420,183.48x = 2,130,318.96 × 621,053.68 - Step 4: Simplify right side
1,420,183.48x = 1,323,042,429,681.77 - Step 5: Solve for x
x = 1,323,042,429,681.77/1,420,183.48 - Step 6: Final answer
x = 931,599.65
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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.