Finding the Fourth Proportional to 505,545.06, 697,331.81 and 384,420.80
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Solution
The fourth proportional to 505,545.06, 697,331.81 and 384,420.80 is: 530,257.09
Step by Step Solution
- Step 1: Write the proportion equation
505,545.06 : 697,331.81 = 384,420.80 : x - Step 2: Convert to fraction form
505,545.06/697,331.81 = 384,420.80/x - Step 3: Cross multiply
505,545.06x = 697,331.81 × 384,420.80 - Step 4: Simplify right side
505,545.06x = 268,068,850,343.54 - Step 5: Solve for x
x = 268,068,850,343.54/505,545.06 - Step 6: Final answer
x = 530,257.09
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.