Finding the Fourth Proportional to 1,108,903.21, 1,530,222.99 and 625,439.53
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Solution
The fourth proportional to 1,108,903.21, 1,530,222.99 and 625,439.53 is: 863,070.77
Step by Step Solution
- Step 1: Write the proportion equation
1,108,903.21 : 1,530,222.99 = 625,439.53 : x - Step 2: Convert to fraction form
1,108,903.21/1,530,222.99 = 625,439.53/x - Step 3: Cross multiply
1,108,903.21x = 1,530,222.99 × 625,439.53 - Step 4: Simplify right side
1,108,903.21x = 957,061,947,660.80 - Step 5: Solve for x
x = 957,061,947,660.80/1,108,903.21 - Step 6: Final answer
x = 863,070.77
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1.5x scale
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.