Finding the Fourth Proportional to 470,515.70, 649,315.62 and 255,655.77
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Solution
The fourth proportional to 470,515.70, 649,315.62 and 255,655.77 is: 352,807.11
Step by Step Solution
- Step 1: Write the proportion equation
470,515.70 : 649,315.62 = 255,655.77 : x - Step 2: Convert to fraction form
470,515.70/649,315.62 = 255,655.77/x - Step 3: Cross multiply
470,515.70x = 649,315.62 × 255,655.77 - Step 4: Simplify right side
470,515.70x = 166,001,284,804.13 - Step 5: Solve for x
x = 166,001,284,804.13/470,515.70 - Step 6: Final answer
x = 352,807.11
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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.