Finding the Fourth Proportional to 1,270,140.84, 1,912,814.55 and 1,156,766.76
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Solution
The fourth proportional to 1,270,140.84, 1,912,814.55 and 1,156,766.76 is: 1,742,074.75
Step by Step Solution
- Step 1: Write the proportion equation
1,270,140.84 : 1,912,814.55 = 1,156,766.76 : x - Step 2: Convert to fraction form
1,270,140.84/1,912,814.55 = 1,156,766.76/x - Step 3: Cross multiply
1,270,140.84x = 1,912,814.55 × 1,156,766.76 - Step 4: Simplify right side
1,270,140.84x = 2,212,680,289,484.36 - Step 5: Solve for x
x = 2,212,680,289,484.36/1,270,140.84 - Step 6: Final answer
x = 1,742,074.75
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.