Finding the Fourth Proportional to 1,152,303.21, 1,729,226.27 and 478,385.09
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Solution
The fourth proportional to 1,152,303.21, 1,729,226.27 and 478,385.09 is: 717,897.90
Step by Step Solution
- Step 1: Write the proportion equation
1,152,303.21 : 1,729,226.27 = 478,385.09 : x - Step 2: Convert to fraction form
1,152,303.21/1,729,226.27 = 478,385.09/x - Step 3: Cross multiply
1,152,303.21x = 1,729,226.27 × 478,385.09 - Step 4: Simplify right side
1,152,303.21x = 827,236,053,766.26 - Step 5: Solve for x
x = 827,236,053,766.26/1,152,303.21 - Step 6: Final answer
x = 717,897.90
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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.