Finding the Fourth Proportional to 834,432.74, 1,257,903.19 and 778,817.67
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Solution
The fourth proportional to 834,432.74, 1,257,903.19 and 778,817.67 is: 1,174,063.75
Step by Step Solution
- Step 1: Write the proportion equation
834,432.74 : 1,257,903.19 = 778,817.67 : x - Step 2: Convert to fraction form
834,432.74/1,257,903.19 = 778,817.67/x - Step 3: Cross multiply
834,432.74x = 1,257,903.19 × 778,817.67 - Step 4: Simplify right side
834,432.74x = 979,677,227,777.75 - Step 5: Solve for x
x = 979,677,227,777.75/834,432.74 - Step 6: Final answer
x = 1,174,063.75
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.