Finding the Fourth Proportional to 788,317.99, 1,087,878.56 and 425,741.92
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Solution
The fourth proportional to 788,317.99, 1,087,878.56 and 425,741.92 is: 587,523.71
Step by Step Solution
- Step 1: Write the proportion equation
788,317.99 : 1,087,878.56 = 425,741.92 : x - Step 2: Convert to fraction form
788,317.99/1,087,878.56 = 425,741.92/x - Step 3: Cross multiply
788,317.99x = 1,087,878.56 × 425,741.92 - Step 4: Simplify right side
788,317.99x = 463,155,508,431.53 - Step 5: Solve for x
x = 463,155,508,431.53/788,317.99 - Step 6: Final answer
x = 587,523.71
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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.