Finding the Fourth Proportional to 746,909.70, 1,119,133.35 and 430,815.30
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Solution
The fourth proportional to 746,909.70, 1,119,133.35 and 430,815.30 is: 645,512.80
Step by Step Solution
- Step 1: Write the proportion equation
746,909.70 : 1,119,133.35 = 430,815.30 : x - Step 2: Convert to fraction form
746,909.70/1,119,133.35 = 430,815.30/x - Step 3: Cross multiply
746,909.70x = 1,119,133.35 × 430,815.30 - Step 4: Simplify right side
746,909.70x = 482,139,769,920.26 - Step 5: Solve for x
x = 482,139,769,920.26/746,909.70 - Step 6: Final answer
x = 645,512.80
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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.