Finding the Fourth Proportional to 3,438,205.80, 5,157,308.70 and 1,041,931.80
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Solution
The fourth proportional to 3,438,205.80, 5,157,308.70 and 1,041,931.80 is: 1,562,897.70
Step by Step Solution
- Step 1: Write the proportion equation
3,438,205.80 : 5,157,308.70 = 1,041,931.80 : x - Step 2: Convert to fraction form
3,438,205.80/5,157,308.70 = 1,041,931.80/x - Step 3: Cross multiply
3,438,205.80x = 5,157,308.70 × 1,041,931.80 - Step 4: Simplify right side
3,438,205.80x = 5,373,563,936,946.66 - Step 5: Solve for x
x = 5,373,563,936,946.66/3,438,205.80 - Step 6: Final answer
x = 1,562,897.70
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1.5x scale
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.