Finding the Fourth Proportional to 717,269.36, 989,838.18 and 394,980.74
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Solution
The fourth proportional to 717,269.36, 989,838.18 and 394,980.74 is: 545,076.98
Step by Step Solution
- Step 1: Write the proportion equation
717,269.36 : 989,838.18 = 394,980.74 : x - Step 2: Convert to fraction form
717,269.36/989,838.18 = 394,980.74/x - Step 3: Cross multiply
717,269.36x = 989,838.18 × 394,980.74 - Step 4: Simplify right side
717,269.36x = 390,967,016,816.65 - Step 5: Solve for x
x = 390,967,016,816.65/717,269.36 - Step 6: Final answer
x = 545,076.98
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.