Finding the Fourth Proportional to 1,708,415.20, 2,559,123.60 and 867,440.80
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Solution
The fourth proportional to 1,708,415.20, 2,559,123.60 and 867,440.80 is: 1,299,384.50
Step by Step Solution
- Step 1: Write the proportion equation
1,708,415.20 : 2,559,123.60 = 867,440.80 : x - Step 2: Convert to fraction form
1,708,415.20/2,559,123.60 = 867,440.80/x - Step 3: Cross multiply
1,708,415.20x = 2,559,123.60 × 867,440.80 - Step 4: Simplify right side
1,708,415.20x = 2,219,888,222,882.88 - Step 5: Solve for x
x = 2,219,888,222,882.88/1,708,415.20 - Step 6: Final answer
x = 1,299,384.50
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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.