Finding the Fourth Proportional to 1,639,134.60, 2,458,701.90 and 1,607,641.80
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Solution
The fourth proportional to 1,639,134.60, 2,458,701.90 and 1,607,641.80 is: 2,411,462.70
Step by Step Solution
- Step 1: Write the proportion equation
1,639,134.60 : 2,458,701.90 = 1,607,641.80 : x - Step 2: Convert to fraction form
1,639,134.60/2,458,701.90 = 1,607,641.80/x - Step 3: Cross multiply
1,639,134.60x = 2,458,701.90 × 1,607,641.80 - Step 4: Simplify right side
1,639,134.60x = 3,952,711,948,179.42 - Step 5: Solve for x
x = 3,952,711,948,179.42/1,639,134.60 - Step 6: Final answer
x = 2,411,462.70
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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.