Finding the Fourth Proportional to 1,282,432.79, 1,769,809.35 and 709,463.09
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Solution
The fourth proportional to 1,282,432.79, 1,769,809.35 and 709,463.09 is: 979,087.88
Step by Step Solution
- Step 1: Write the proportion equation
1,282,432.79 : 1,769,809.35 = 709,463.09 : x - Step 2: Convert to fraction form
1,282,432.79/1,769,809.35 = 709,463.09/x - Step 3: Cross multiply
1,282,432.79x = 1,769,809.35 × 709,463.09 - Step 4: Simplify right side
1,282,432.79x = 1,255,614,401,312.84 - Step 5: Solve for x
x = 1,255,614,401,312.84/1,282,432.79 - Step 6: Final answer
x = 979,087.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.