Finding the Fourth Proportional to 1,869,423.40, 2,804,135.10 and 1,157,141.80
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Solution
The fourth proportional to 1,869,423.40, 2,804,135.10 and 1,157,141.80 is: 1,735,712.70
Step by Step Solution
- Step 1: Write the proportion equation
1,869,423.40 : 2,804,135.10 = 1,157,141.80 : x - Step 2: Convert to fraction form
1,869,423.40/2,804,135.10 = 1,157,141.80/x - Step 3: Cross multiply
1,869,423.40x = 2,804,135.10 × 1,157,141.80 - Step 4: Simplify right side
1,869,423.40x = 3,244,781,937,057.18 - Step 5: Solve for x
x = 3,244,781,937,057.18/1,869,423.40 - Step 6: Final answer
x = 1,735,712.70
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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.