Finding the Fourth Proportional to 984,913.80, 1,477,370.70 and 669,985.80
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Solution
The fourth proportional to 984,913.80, 1,477,370.70 and 669,985.80 is: 1,004,978.70
Step by Step Solution
- Step 1: Write the proportion equation
984,913.80 : 1,477,370.70 = 669,985.80 : x - Step 2: Convert to fraction form
984,913.80/1,477,370.70 = 669,985.80/x - Step 3: Cross multiply
984,913.80x = 1,477,370.70 × 669,985.80 - Step 4: Simplify right side
984,913.80x = 989,817,390,336.06 - Step 5: Solve for x
x = 989,817,390,336.06/984,913.80 - Step 6: Final answer
x = 1,004,978.70
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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.