Finding the Fourth Proportional to 761,423.20, 1,050,370.96 and 516,325.08
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Solution
The fourth proportional to 761,423.20, 1,050,370.96 and 516,325.08 is: 712,262.08
Step by Step Solution
- Step 1: Write the proportion equation
761,423.20 : 1,050,370.96 = 516,325.08 : x - Step 2: Convert to fraction form
761,423.20/1,050,370.96 = 516,325.08/x - Step 3: Cross multiply
761,423.20x = 1,050,370.96 × 516,325.08 - Step 4: Simplify right side
761,423.20x = 542,332,869,951.68 - Step 5: Solve for x
x = 542,332,869,951.68/761,423.20 - Step 6: Final answer
x = 712,262.08
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1.5x scale
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.