Finding the Fourth Proportional to 780,146.70, 1,170,220.05 and 465,218.70
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Solution
The fourth proportional to 780,146.70, 1,170,220.05 and 465,218.70 is: 697,828.05
Step by Step Solution
- Step 1: Write the proportion equation
780,146.70 : 1,170,220.05 = 465,218.70 : x - Step 2: Convert to fraction form
780,146.70/1,170,220.05 = 465,218.70/x - Step 3: Cross multiply
780,146.70x = 1,170,220.05 × 465,218.70 - Step 4: Simplify right side
780,146.70x = 544,408,250,374.94 - Step 5: Solve for x
x = 544,408,250,374.94/780,146.70 - Step 6: Final answer
x = 697,828.05
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1.5x scale
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.