Finding the Fourth Proportional to 725,619.98, 1,088,430.16 and 213,285.20
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Solution
The fourth proportional to 725,619.98, 1,088,430.16 and 213,285.20 is: 319,927.86
Step by Step Solution
- Step 1: Write the proportion equation
725,619.98 : 1,088,430.16 = 213,285.20 : x - Step 2: Convert to fraction form
725,619.98/1,088,430.16 = 213,285.20/x - Step 3: Cross multiply
725,619.98x = 1,088,430.16 × 213,285.20 - Step 4: Simplify right side
725,619.98x = 232,146,044,361.63 - Step 5: Solve for x
x = 232,146,044,361.63/725,619.98 - Step 6: Final answer
x = 319,927.86
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.