Finding the Fourth Proportional to 1,490,291.63, 2,056,870.84 and 878,408.67
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Solution
The fourth proportional to 1,490,291.63, 2,056,870.84 and 878,408.67 is: 1,212,362.16
Step by Step Solution
- Step 1: Write the proportion equation
1,490,291.63 : 2,056,870.84 = 878,408.67 : x - Step 2: Convert to fraction form
1,490,291.63/2,056,870.84 = 878,408.67/x - Step 3: Cross multiply
1,490,291.63x = 2,056,870.84 × 878,408.67 - Step 4: Simplify right side
1,490,291.63x = 1,806,773,178,926.18 - Step 5: Solve for x
x = 1,806,773,178,926.18/1,490,291.63 - Step 6: Final answer
x = 1,212,362.16
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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.