Finding the Fourth Proportional to 528,633.05, 728,507.99 and 518,917.37
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Solution
The fourth proportional to 528,633.05, 728,507.99 and 518,917.37 is: 715,118.84
Step by Step Solution
- Step 1: Write the proportion equation
528,633.05 : 728,507.99 = 518,917.37 : x - Step 2: Convert to fraction form
528,633.05/728,507.99 = 518,917.37/x - Step 3: Cross multiply
528,633.05x = 728,507.99 × 518,917.37 - Step 4: Simplify right side
528,633.05x = 378,035,447,849.54 - Step 5: Solve for x
x = 378,035,447,849.54/528,633.05 - Step 6: Final answer
x = 715,118.84
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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.