Finding the Third Proportional to 486,291 and 781,332.75
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Solution
The third proportional to 486,291 and 781,332.75 is: 1,255,381.79
Step by Step Solution
- Step 1: Write the proportion equation
486,291 : 781,332.75 = 781,332.75 : x - Step 2: Convert to fraction form
486,291/781,332.75 = 781,332.75/x - Step 3: Cross multiply
486,291x = 781,332.75 × 781,332.75 - Step 4: Simplify right side
486,291x = 610,480,866,222.56 - Step 5: Solve for x
x = 610,480,866,222.56/486,291 - Step 6: Final answer
x = 1,255,381.79
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These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.