Finding the Fourth Proportional to 1,019,318.40, 1,408,184.64 and 671,285.88
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Solution
The fourth proportional to 1,019,318.40, 1,408,184.64 and 671,285.88 is: 927,378.99
Step by Step Solution
- Step 1: Write the proportion equation
1,019,318.40 : 1,408,184.64 = 671,285.88 : x - Step 2: Convert to fraction form
1,019,318.40/1,408,184.64 = 671,285.88/x - Step 3: Cross multiply
1,019,318.40x = 1,408,184.64 × 671,285.88 - Step 4: Simplify right side
1,019,318.40x = 945,294,465,264.88 - Step 5: Solve for x
x = 945,294,465,264.88/1,019,318.40 - Step 6: Final answer
x = 927,378.99
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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.