Finding the Fourth Proportional to 1,207,442.70, 1,811,164.05 and 787,538.70
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Solution
The fourth proportional to 1,207,442.70, 1,811,164.05 and 787,538.70 is: 1,181,308.05
Step by Step Solution
- Step 1: Write the proportion equation
1,207,442.70 : 1,811,164.05 = 787,538.70 : x - Step 2: Convert to fraction form
1,207,442.70/1,811,164.05 = 787,538.70/x - Step 3: Cross multiply
1,207,442.70x = 1,811,164.05 × 787,538.70 - Step 4: Simplify right side
1,207,442.70x = 1,426,361,781,423.74 - Step 5: Solve for x
x = 1,426,361,781,423.74/1,207,442.70 - Step 6: Final answer
x = 1,181,308.05
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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.