Finding the Fourth Proportional to 470,286.78, 648,997.61 and 255,430.43
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Solution
The fourth proportional to 470,286.78, 648,997.61 and 255,430.43 is: 352,494.99
Step by Step Solution
- Step 1: Write the proportion equation
470,286.78 : 648,997.61 = 255,430.43 : x - Step 2: Convert to fraction form
470,286.78/648,997.61 = 255,430.43/x - Step 3: Cross multiply
470,286.78x = 648,997.61 × 255,430.43 - Step 4: Simplify right side
470,286.78x = 165,773,734,069.13 - Step 5: Solve for x
x = 165,773,734,069.13/470,286.78 - Step 6: Final answer
x = 352,494.99
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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.