Finding the Fourth Proportional to 806,769.80, 1,210,154.70 and 386,865.80
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Solution
The fourth proportional to 806,769.80, 1,210,154.70 and 386,865.80 is: 580,298.70
Step by Step Solution
- Step 1: Write the proportion equation
806,769.80 : 1,210,154.70 = 386,865.80 : x - Step 2: Convert to fraction form
806,769.80/1,210,154.70 = 386,865.80/x - Step 3: Cross multiply
806,769.80x = 1,210,154.70 × 386,865.80 - Step 4: Simplify right side
806,769.80x = 468,167,466,139.26 - Step 5: Solve for x
x = 468,167,466,139.26/806,769.80 - Step 6: Final answer
x = 580,298.70
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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.